Question

Margie's car can go 32 miles on a gallon of gas, and gas currently costs 4 per gallon. How many miles can Margie drive on $20 worth of gas?

Answer 1

Five gallons can be bought with $20 dollars, so 32 x 5 = 160 miles. 

Answer 2

To find how many miles Margie`s car can go we do:
20/4=5
32*5=160 miles
Margie can drive 160 miles on $20.