Diane will rent a car. The first plan has an initial fee of $51 and costs an additional $0.07 per mile driven. The second plan has an initial fee of $42 and costs an additional $0.09 per mile driven.

Question

For what amount of driving do the two plans cost the same? What is the cost when the two plans cost the same?

Answer 1

51 + .07m = 42 + .09m

.02m=9

m=450