One of the steps rob used to solve an equation is shown below.

-5(3x + 7) = 10

-15x + -35 = 10

a: rob added -5 and 3x to eliminate the parentheses. this procedure is justified by the associative property.

b: rob added -5 and 3x to eliminate the parentheses. this procedure is justified by the distributive property.

c: rob multiplied 3x and 7 by -5 to eliminate the parentheses. this procedure is justified by the associative property.

d: rob multiplied 3x and 7 by -5 to eliminate the parentheses. this procedure is justified by the distributive property.

D

Step-by-step explanation:

Let's review the distributive property.

It is

a(b+c) = ab + ac

Whenever we have a sum/difference multiplied by a number upfront, we need to eliminate the parenthesis. We do it by multiplying the constant with the terms of the sum/difference inside the parenthesis, each respectively.

Looking at 2 steps, we see Rob:

From the answer choices, D is right.

answer: plz put a pic in so i can answer it

step-by-step explanation:

what is the question? i am guessing you are looking for the area.

to find an area, you have to do length x width.

in this case, it would be 12 ft x 4 ft = 48 sq. ft