diff --git a/index.js b/index.js
index 294f6b2..4e7072e 100644
--- a/index.js
+++ b/index.js
@@ -7,13 +7,9 @@ const s3 = "Ted";
 const s4 = "bread";
 const s5 = "and";
 
-// Concatenate the string variables into one new string
-
-
-// Print out the concatenated string
-
-
+const tongueTwister = `${s1} ${s2} ${s3} ${s4} ${s5}`;
 
+console.log(tongueTwister);
 
 /*******************************************
     Iteration 1.2 | Camel Tail
@@ -21,37 +17,35 @@ const s5 = "and";
 const part1 = "java";
 const part2 = "script";
 
-// Convert the last letter of part1 and part2 to uppercase and concatenate the strings
-
-
-// Print the cameLtaiL-formatted string
-
-
+const cameLtaiL =
+  part1.slice(0, 3) +
+  part1[part1.length - 1].toUpperCase() +
+  " " +
+  part2 +
+  part2[part2.length - 1].toUpperCase();
 
+console.log(cameLtaiL);
 
 /*******************************************
     Iteration 2.1 | Calculate Tip
 *******************************************/
 const billTotal = 84;
 
-// Calculate the tip (15% of the bill total)
-
-
-// Print out the tipAmount
-
+const tipPercentage = 0.15;
 
+const tipValue = billTotal * tipPercentage;
 
+console.log(tipValue);
 
 /*******************************************
     Iteration 2.2 | Generate Random Number
 *******************************************/
+const num1 = 1;
+const num2 = 10;
 
-// Generate a random integer between 1 and 10 (inclusive)
-
-
-// Print the generated random number
-
+const ramdomNumber = Math.floor(Math.random() * (num2 - num1 + 1)) + num1;
 
+console.log(ramdomNumber);
 
 /*******************************************
     Iteration 3.1 | Booleans
@@ -62,15 +56,16 @@ const b = false;
 
 // Try and guess the output of the below expressions first and write your answers down:
 const expression1 = a && b;
-
+// false
 const expression2 = a || b;
-
+// true
 const expression3 = !a && b;
-
+// false
 const expression4 = !(a && b);
-
+// true
 const expression5 = !a || !b;
-
+// true
 const expression6 = !(a || b);
-
-const expression7 = a && a;
\ No newline at end of file
+// false
+const expression7 = a && a;
+// true