A building block has a square base that has a perimeter of (12x-9) inches. Explain how to use the expression to find the length of the wall.

#of blocks in a single layer of the wall * 3(x)-9/4

Step-by-step explanation:

So, let Y be the length of the wall. It will be made from the building blocks described.

If the perimeter of a square block is 12x-9 and the formula for the perimeter of a square is 4s (where s = length of a side). Then one side of the square is the perimeter divided by 4.

s = (12x-9)/4 = 3x-9/4

In order to find the length of the wall, multiply s by the number of blocks used to build one level of the wall.

it would take 5 hours i think idk i'm not that good at math.can you me with my questions i need asap.