What does this expression represent? 12f + 24
1. twenty-four more than twelve plus a number
2.twelve times the sum of a number plus twenty four
3.twenty-four more than twelve times a number
4.twelve times the difference of a number and twenty four

3

Step-by-step explanation:

when you see a variable with a number it means a number times a number. so for instance if you see 2x its 2 times a number x. then you see +12 which means addition therfore when you have a bag of apples and u add apples to the bag you have two more apples in your bag of apples if that nakes sense.

hope that helps!

 The length of last piece is 30 inches.

Step-by-step explanation:

Since we have given that

Length of one leg = 18 inches

Length of other leg = 2 feet = 24 inches

As it is in the right triangle.

Hence, the length of last piece is 30 inches.