3 A teacher needs to cut pieces of yarn, each yards in length. How many
pieces can he cut from a string of yarn that is 6 yards long?

Step-by-step explanation: if there are supposed to be three pieces, then

6/3=2 yards

Does this help ?

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

a.

step-by-step explanation:

step 1 distribute 2 to every term in the parentheses

step 2 add 10 on both sides of the equal sign