diff --git a/index.js b/index.js
index 294f6b2..a0c62d7 100644
--- a/index.js
+++ b/index.js
@@ -8,11 +8,13 @@ const s4 = "bread";
 const s5 = "and";
 
 // Concatenate the string variables into one new string
+let tongueTwister = s1 + s2 + s3 + s4 + s5 + s3 + s2 + s1 + s4;
 
+console.log(tongueTwister);
 
 // Print out the concatenated string
 
-
+console.log(tongueTwister);
 
 
 /*******************************************
@@ -22,10 +24,12 @@ const part1 = "java";
 const part2 = "script";
 
 // Convert the last letter of part1 and part2 to uppercase and concatenate the strings
-
-
+let lastchar1 = part1.charAt(part1.length-1);
+let lastchar2 = part2.charAt(part2.length-1);
+let cameLtaiL= part1.slice(0, part1.length-1) + lastchar1.toUpperCase() + part2.slice(0, part2.length-1) + lastchar2.toUpperCase();
+console.log(cameLtaiL);
 // Print the cameLtaiL-formatted string
-
+console.log(cameLtaiL);
 
 
 
@@ -35,11 +39,12 @@ const part2 = "script";
 const billTotal = 84;
 
 // Calculate the tip (15% of the bill total)
+const tipAmount = billTotal * 0.15;
 
 
 // Print out the tipAmount
 
-
+console.log(tipAmount);
 
 
 /*******************************************
@@ -48,9 +53,9 @@ const billTotal = 84;
 
 // Generate a random integer between 1 and 10 (inclusive)
 
-
+const randomNumber = Math.floor(Math.random() * 10) + 1;
 // Print the generated random number
-
+console.log(randomNumber);
 
 
 /*******************************************
@@ -62,15 +67,24 @@ 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;
-
+//true
 const expression4 = !(a && b);
-
+//true
 const expression5 = !a || !b;
-
+//false
 const expression6 = !(a || b);
-
-const expression7 = a && a;
\ No newline at end of file
+//false
+const expression7 = a && a;
+//true
+
+console.log(expression1); // false (correct)
+console.log(expression2); // true (correct)
+console.log(expression3); // false (correct)
+console.log(expression4); // true (correct)
+console.log(expression5); // true (correct)
+console.log(expression6); // false (correct)
+console.log(expression7); // true (correct)
\ No newline at end of file