Chris's new car gets 42 miles per gallon. What is the equation that represents y, the total miles driven on x gallons of gas?

A) y=42x C) y=42+x

B) x=42+y D) x=42y

Answer: I think the answer is B

Step-By-Step Explination:

First you find out what x is by doing 42 multiplying it by 0.1 witch equals 4.2 gallons per mile

Next you figure out what y is by doing 4.2y (witch is 4.2 times y)