Question

how do i write these in equations to represent each situation?

1. the perimeter P of a rectangle is the sum of twice the length L and twice the width W

2. the volume V of a rectangular prism is the product of its three dimensions: length L,width W, and height H

3. The cost C of a telegram of 18 words is the cost F of the first 10 words plus the cost A of each additional word.

Answer 1

1. P=(2L)+(2W)
2. V=LWH
3. C=F+8A

Answer 2

1. Do not need parentheses.

P = 2L + 2W

2. To avoid confusion of LWH being an acronym, indicate multiplication online with an asterisk (*) or parentheses.

V = L * W * H = (L)(W)(H)