Sara drove 72 miles on 4 gallons of gas.

Sara drove 18 miles per gallon of gas.

72 miles ÷ 4 gallons of gas = 18 miles per gallon of gas

I think the answer is 18 because 72 divided by 4 is 18. I don't know if it is mph or if its miles per gallon. I don't know, it's one of those two so yah...

Hope this helps. c;

b. y = 4x - 2

step-by-step explanation:

to find a parallel equation to an equation, make sure both equations have the same slope but different y-intercepts.

y = 4x + 1

4 = slope

1 = y-intercept

y = 4x - 2

4 = slope

-2 = y-intercept

they both have the same slope but different y-intercepts, so, b. is the correct answer.

and to check your work, you can graph both equations. : )