PLEASE HELP 25PT

Mrs. Walters drove 360 miles on 25 miles of gas.
Mr. Walters drove 480 miles on 32 gallons of gas.

1. Find the mileage per gallon for Mrs. Walters and Mr. Walters car.

2. Which car is getting the better mileage per gallon?

Answer the question like this please(Here is an example)

1 + 1 = 2

So first we know this is a addition problem. The first step is to add 1 to 1. Just count up ETC please answer the whle question like that for each step.