Question

Algebra I

Hi! I need a step by step explanation on how to do this: ( 20 points!)

Thanks in advance! :)

Answer 1

Explanation:

Answer 2

Equation to find the area A of one rectangular mat.(x is the area in equation).

4x + 0.5x = 81 => the area 18 is ft^2.

The length of mat is 6, width is 3: