How much gift wrap is needed to cover a box
measuring 18 inches by
12 inches by 4 inches?

All we need to do here, is to find the total surface area.

In this case, we have:

2(18x12 + 18x4 + 12x4) which is equal to 672

Let me know if this helps!

5x+40

5(x + 8)

7x - 49

7(x - 7)

18x + 9

9(2x + 1)

15x - 10

5(3x - 2)

step-by-step explanation:

for number one all you have to do is factor 5 out of 5x + 40

for number 2 factor 7 out of 7x - 49

for number three factor 9 out of 18x + 9

for number four factor 5 out of 15x - 10