Choose the diagram (A or B) which each equation represents. In each case, explain in words why you chose it.

4x - 3 = 2x + 9

4x - 3 + 2x + 9 = 42

4x - 3 = 21

there are three prime numbers with only 1 and themselves as factors so i say one is the greatest common factor for all of them.

step-by-step explanation:

you start with 40 minutes and 8 people to paint a wall. then it asks how many minutes does it take 10 people to paint seven walls.

that means you start with division.

40÷8=5

now you have to multiply that by 10

10×5=50

now you want to multiply the amount of walls by number minutes.

50*7= 150 minutes or 2½hrs

hope this ! -john

the answer:

rolling a number cube twice

choosing a meal/drink combination

flipping a coin four times

i know because i just submitted my test and got everyone correct.