Amy B. answered • 07/15/15

Patient & Knowledgeable MIT Grad-Classroom Teacher

First find out how many miles she drove for one gallon of gas, that's the unit rate.

476÷17=28 miles for one gallon of gas.

Now multiply the miles for one gallon by the number of gallons she has/

That's 28 miles/gallon × 3o gallons and that will give you your answer.

840 miles.