diff --git a/Sprint-1/errors/0.js b/Sprint-1/errors/0.js
index cf6c5039f..c2cc3b112 100644
--- a/Sprint-1/errors/0.js
+++ b/Sprint-1/errors/0.js
@@ -1,2 +1,2 @@
-This is just an instruction for the first activity - but it is just for human consumption
-We don't want the computer to run these 2 lines - how can we solve this problem?
\ No newline at end of file
+/*This is just an instruction for the first activity - but it is just for human consumption
+We don't want the computer to run these 2 lines - how can we solve this problem? */
\ No newline at end of file
diff --git a/Sprint-1/errors/1.js b/Sprint-1/errors/1.js
index 7a43cbea7..78250141a 100644
--- a/Sprint-1/errors/1.js
+++ b/Sprint-1/errors/1.js
@@ -1,4 +1,8 @@
 // trying to create an age variable and then reassign the value by 1
 
-const age = 33;
+/* const age = 33;
+age = age + 1; */
+
+let age = 33;
 age = age + 1;
+console.log(age);
diff --git a/Sprint-1/errors/2.js b/Sprint-1/errors/2.js
index e09b89831..a7401245d 100644
--- a/Sprint-1/errors/2.js
+++ b/Sprint-1/errors/2.js
@@ -1,5 +1,5 @@
 // Currently trying to print the string "I was born in Bolton" but it isn't working...
 // what's the error ?
 
-console.log(`I was born in ${cityOfBirth}`);
 const cityOfBirth = "Bolton";
+console.log(`I was born in ${cityOfBirth}`);
\ No newline at end of file
diff --git a/Sprint-1/errors/3.js b/Sprint-1/errors/3.js
index ec101884d..9a8ec7058 100644
--- a/Sprint-1/errors/3.js
+++ b/Sprint-1/errors/3.js
@@ -1,4 +1,4 @@
-const cardNumber = 4533787178994213;
+const cardNumber = "4533787178994213";
 const last4Digits = cardNumber.slice(-4);
 
 // The last4Digits variable should store the last 4 digits of cardNumber
@@ -7,3 +7,6 @@ const last4Digits = cardNumber.slice(-4);
 // Then run the code and see what error it gives.
 // Consider: Why does it give this error? Is this what I predicted? If not, what's different?
 // Then try updating the expression last4Digits is assigned to, in order to get the correct value
+
+
+//Error: cardNumber.slice is not a function
\ No newline at end of file
diff --git a/Sprint-1/errors/4.js b/Sprint-1/errors/4.js
index 21dad8c5d..19fecac48 100644
--- a/Sprint-1/errors/4.js
+++ b/Sprint-1/errors/4.js
@@ -1,2 +1,39 @@
-const 12HourClockTime = "20:53";
-const 24hourClockTime = "08:53";
\ No newline at end of file
+//const 12HourClockTime = "20:53";
+//const 24hourClockTime = "08:53";
+
+  function convert12To24(time) {
+  const [hours, minutes] = time.split(":");
+  let hour = parseInt(hours);
+  const period = time.includes("PM") ? "PM" : "AM";
+
+  if (period === "PM" && hour < 12) {
+      hour += 12;
+  } else if (period === "AM" && hour === 12) {
+      hour = 0;
+  }
+
+  return `${hour.toString().padStart(2, '0')}:${minutes}`;
+}
+
+function convert24To12(time) {
+  const [hours, minutes] = time.split(":");
+  let hour = parseInt(hours);
+  const period = hour >= 12 ? "PM" : "AM";
+
+  if (hour > 12) {
+      hour -= 12;
+  } else if (hour === 0) {
+      hour = 12;
+  }
+
+  return `${hour}:${minutes} ${period}`;
+}
+
+const twelveHourClockTime = "08:53 PM"; // Example input for 12-hour format
+const twentyFourHourClockTime = "20:53"; // Given input for 24-hour format
+
+const convertedTo24 = convert12To24(twelveHourClockTime);
+const convertedTo12 = convert24To12(twentyFourHourClockTime);
+
+console.log(`12-hour to 24-hour: ${convertedTo24}`); // Output: 20:53
+console.log(`24-hour to 12-hour: ${convertedTo12}`); // Output: 8:53 PM
diff --git a/Sprint-1/exercises/count.js b/Sprint-1/exercises/count.js
index 117bcb2b6..d4bfb4b84 100644
--- a/Sprint-1/exercises/count.js
+++ b/Sprint-1/exercises/count.js
@@ -4,3 +4,9 @@ count = count + 1;
 
 // Line 1 is a variable declaration, creating the count variable with an initial value of 0
 // Describe what line 3 is doing, in particular focus on what = is doing
+
+/* Answer: In line 3, count = count + 1;, the = operator is performing an assignment. 
+It takes the current value of the variable count, which is 0 at this point, 
+adds 1 to it, and then assigns the result back to the variable count.
+So, after this line executes, count will now hold the value of 1. 
+Essentially, this line increments the value of count by 1 */
\ No newline at end of file
diff --git a/Sprint-1/exercises/decimal.js b/Sprint-1/exercises/decimal.js
index cc5947ce2..b291f697a 100644
--- a/Sprint-1/exercises/decimal.js
+++ b/Sprint-1/exercises/decimal.js
@@ -1,9 +1,18 @@
 const num = 56.5678;
 
+const wholeNumberPart = Math.floor(num);
+const decimalPart = num - wholeNumberPart;
+const roundedNum = Math.round(num);
+
+console.log(wholeNumberPart);
+console.log(decimalPart);
+console.log(roundedNum);
+
+
 // You should look up Math functions for this exercise https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math
 
 // Create a variable called wholeNumberPart and assign to it an expression that evaluates to 56 ( the whole number part of num )
 // Create a variable called decimalPart and assign to it an expression that evaluates to 0.5678 ( the decimal part of num )
 // Create a variable called roundedNum and assign to it an expression that evaluates to 57 ( num rounded to the nearest whole number )
 
-// Log your variables to the console to check your answers
+// Log your variables to the console to check your answers
\ No newline at end of file
diff --git a/Sprint-1/exercises/initials.js b/Sprint-1/exercises/initials.js
index 6b80cd137..8fd660f6e 100644
--- a/Sprint-1/exercises/initials.js
+++ b/Sprint-1/exercises/initials.js
@@ -2,5 +2,9 @@ let firstName = "Creola";
 let middleName = "Katherine";
 let lastName = "Johnson";
 
+let initials = firstName.charAt(0) + middleName.charAt(0) + lastName.charAt(0);
+
+console.log(initials);
+
 // Declare a variable called initials that stores the first character of each string.
 // This should produce the string "CKJ", but you must not write the characters C, K, or J in the code of your solution.
diff --git a/Sprint-1/exercises/paths.js b/Sprint-1/exercises/paths.js
index c91cd2ab3..5e207c9a6 100644
--- a/Sprint-1/exercises/paths.js
+++ b/Sprint-1/exercises/paths.js
@@ -15,4 +15,7 @@ const base = filePath.slice(lastSlashIndex + 1);
 console.log(`The base part of ${filePath} is ${base}`);
 
 // Create a variable to store the dir part of the filePath variable
+// Answer: const dir = slice(0, lastSlashIndex);
+
 // Create a variable to store the ext part of the variable
+// Answer: const ext = slice(base.lastIndexOf("."));
diff --git a/Sprint-1/exercises/random.js b/Sprint-1/exercises/random.js
index 292f83aab..a672ca0bb 100644
--- a/Sprint-1/exercises/random.js
+++ b/Sprint-1/exercises/random.js
@@ -7,3 +7,5 @@ const num = Math.floor(Math.random() * (maximum - minimum + 1)) + minimum;
 // Try breaking down the expression and using documentation to explain what it means
 // It will help to think about the order in which expressions are evaluated
 // Try logging the value of num and running the program several times to build an idea of what the program is doing
+
+//Answer: Each time I run the code, num will be a random integer between 1 and 100, including both endpoints.
\ No newline at end of file
diff --git a/Sprint-1/explore/chrome.md b/Sprint-1/explore/chrome.md
index e7dd5feaf..bf87c99df 100644
--- a/Sprint-1/explore/chrome.md
+++ b/Sprint-1/explore/chrome.md
@@ -12,7 +12,11 @@ invoke the function `alert` with an input string of `"Hello world!"`;
 
 What effect does calling the `alert` function have?
 
+-->Answer: This will pop up an alert box displaying "Hello world!".
+
 Now try invoking the function `prompt` with a string input of `"What is your name?"` - store the return value of your call to `prompt` in an variable called `myName`.
 
 What effect does calling the `prompt` function have?
 What is the return value of `prompt`?
+
+-->Answer: This code works as follows: prompt("What is your name?") displays a dialog box prompting the user to enter their name. The value entered by the user will be stored in the variable myName.
\ No newline at end of file
diff --git a/Sprint-1/explore/objects.md b/Sprint-1/explore/objects.md
index 0216dee56..c479176f2 100644
--- a/Sprint-1/explore/objects.md
+++ b/Sprint-1/explore/objects.md
@@ -6,11 +6,22 @@ Open the Chrome devtools Console, type in `console.log` and then hit enter
 
 What output do you get?
 
+-->Answer: ƒ log() { [native code] }
+
 Now enter just `console` in the Console, what output do you get back?
 
+-->Answer: console {debug: ƒ, error: ƒ, info: ƒ, log: ƒ, warn: ƒ, …}
+
 Try also entering `typeof console`
 
+-->Answer: 'object'
+
 Answer the following questions:
 
 What does `console` store?
 What does the syntax `console.log` or `console.assert` mean? In particular, what does the `.` mean?
+
+-->Answer: 
+console: This is a built-in global object in JavaScript that provides access to the browser's debugging console. It includes various methods for logging information, warnings, errors, and more.
+
+The dot (.) is used to access properties and methods of an object. In this case, it is used to access the log and assert methods of the console object.
\ No newline at end of file
diff --git a/Sprint-1/interpret/percentage-change.js b/Sprint-1/interpret/percentage-change.js
index e24ecb8e1..58c210050 100644
--- a/Sprint-1/interpret/percentage-change.js
+++ b/Sprint-1/interpret/percentage-change.js
@@ -12,11 +12,30 @@ console.log(`The percentage change is ${percentageChange}`);
 // Read the code and then answer the questions below
 
 // a) How many function calls are there in this file? Write down all the lines where a function call is made
+/* Three. 
+    1. Number
+    2. replaceAll
+    3. console.log
 
 // b) Run the code and identify the line where the error is coming from - why is this error occurring? How can you fix this problem?
+/* a "," missing in fifth line, should be:
+priceAfterOneYear = Number(priceAfterOneYear.replaceAll(",", "")); */
+
 
 // c) Identify all the lines that are variable reassignment statements
+/*  1. carPrice
+    2. priceAfterOneYear
+
 
 // d) Identify all the lines that are variable declarations
+/*  1. carPrice
+    2. priceAfterOneYear
+    3. priceDifference
+    4. percentageChange
 
 // e) Describe what the expression Number(carPrice.replaceAll(",","")) is doing - what is the purpose of this expression?
+/* carPrice.replaceAll(",", "") removed comma from carPrice
+
+The overall purpose of the expression Number(carPrice.replaceAll(",", "")) is to:
+  1. Clean up the string representation of the car price by removing any commas that are commonly used in formatting large numbers.
+  2. Convert the cleaned string into a numeric type so that mathematical operations (like addition, subtraction, or percentage calculations) can be performed accurately.
\ No newline at end of file
diff --git a/Sprint-1/interpret/time-format.js b/Sprint-1/interpret/time-format.js
index 83232e43a..c5b4139ea 100644
--- a/Sprint-1/interpret/time-format.js
+++ b/Sprint-1/interpret/time-format.js
@@ -12,13 +12,21 @@ console.log(result);
 // For the piece of code above, read the code and then answer the following questions
 
 // a) How many variable declarations are there in this program?
+/* One. movieLength
 
 // b) How many function calls are there?
+/* One. console.log
 
 // c) Using documentation, explain what the expression movieLength % 60 represents
+/* It is used to calculate the remaining seconds in the movie length (given in seconds). 
+Here, % is the modulus operator, which calculates the remainder of two numbers when divided.
 
 // d) Interpret line 4, what does the expression assigned to totalMinutes mean?
+/*  It is calculating the total number of minutes in the movie length, excluding the remaining seconds.
 
 // e) What do you think the variable result represents? Can you think of a better name for this variable?
+/* Total length of the movie. 
+"total_length"
 
 // f) Try experimenting with different values of movieLength. Will this code work for all values of movieLength? Explain your answer
+It works for non-negative values of movieLength.
\ No newline at end of file
diff --git a/Sprint-1/interpret/to-pounds.js b/Sprint-1/interpret/to-pounds.js
index 60c9ace69..4148a204f 100644
--- a/Sprint-1/interpret/to-pounds.js
+++ b/Sprint-1/interpret/to-pounds.js
@@ -25,3 +25,9 @@ console.log(`£${pounds}.${pence}`);
 
 // To begin, we can start with
 // 1. const penceString = "399p": initialises a string variable with the value "399p"
+// 2. const penceStringWithoutTrailingP = penceString.substring(0,penceString.length - 1): remove "p"
+// 3. const paddedPenceNumberString = penceStringWithoutTrailingP.padStart(3, "0"): Pad the pence number string
+// 4. const pounds = paddedPenceNumberString.substring(0,paddedPenceNumberString.length - 2): Extract pounds
+// 5. const pence = paddedPenceNumberString.substring(paddedPenceNumberString.length - 2).padEnd(2, "0");: Extract pence
+// 6. console.log(`£${pounds}.${pence}`);: Output the Result
+