diff --git a/index.js b/index.js
index 294f6b2..ff7a760 100644
--- a/index.js
+++ b/index.js
@@ -9,10 +9,11 @@ const s5 = "and";
 
 // Concatenate the string variables into one new string
 
+const tongueTwister = `${s1} ${s2} ${s3} ${s4} ${s5} ${s3} ${s2} ${s1} ${s4}`;
 
 // Print out the concatenated string
 
-
+console.log(tongueTwister);
 
 
 /*******************************************
@@ -23,10 +24,15 @@ const part2 = "script";
 
 // Convert the last letter of part1 and part2 to uppercase and concatenate the strings
 
+let parte1 = part1.slice(0,-1) + part1.slice(-1).toUpperCase();
 
-// Print the cameLtaiL-formatted string
+let parte2 = part2.slice(0,-1) + part2.slice(-1).toUpperCase();
+
+const result = parte1 + parte2;
 
+// Print the cameLtaiL-formatted string
 
+console.log(result)
 
 
 /*******************************************
@@ -36,10 +42,11 @@ const billTotal = 84;
 
 // Calculate the tip (15% of the bill total)
 
+let tipAmount = billTotal * (15/100);
 
 // Print out the tipAmount
 
-
+console.log("Tip: " +  tipAmount + '$')
 
 
 /*******************************************
@@ -48,9 +55,11 @@ const billTotal = 84;
 
 // Generate a random integer between 1 and 10 (inclusive)
 
+let random = Math.round(Math.random() * 10);
 
 // Print the generated random number
 
+console.log(random)
 
 
 /*******************************************
@@ -62,15 +71,30 @@ 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
+
+console.log(expression1)
+console.log(expression2)
+console.log(expression3)
+console.log(expression4)
+console.log(expression5)
+console.log(expression6)
+console.log(expression7)
\ No newline at end of file