Question

Help with this question, please ASAP!!

Answer 1

`\large\boxed{P=(16+36x)\ ft}`

Explanation:

The formula of an area of a rectangle:

`A=bh`

b - base

h - height

We have A = 144x ft² and h = 8. Substitute and solve for b:

`144x=8b` divide both sides by 8

`b=18x\ ft`

The formula of a perimeter of a rectangle:

`P=2b+2h`

Substitute:

`P=2(18x)+2(8)=36x+16`