Question

An advertisement for a steel-belted radial tire states that this tire delivers 14% better gas mileage. If the present gas mileage is 25.5 mpg, what mileage would you expect if you purchased these tires? Round your answer to the nearest tenth of a mile per gallon.
I know the answer, I'm just not sure how I got it.

Answer 1

25.5 * 1.14 = 29.1 mpg

Answer 2

where does the 1 come from the 1.14? I have my final today.

Answer 3

1, = 100%. You're paying 100% of the tire plus sales tax.