Renatta Gas drives her car 5 miles west, then stops and walks 2 miles south to Wal-mart to buy a gas can. She then walks 3 miles east to the Shell station to fill the can and 4 miles back to her car to fill her tank.

step-by-step explanation:

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

the first one, all those points on the line just make a strait line.

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