Answer:
The vehicle can travel 12 miles per gallon of gasoline
Explanation:
Proportions
A vehicle uses 1 1/8 gallons of gasoline to travel 13 1/2 miles.
It's required to find the rate of miles per gallon of gasoline consumption of the vehicle.
First, we convert all the mixed fractions to improper fractions:


The rate of consumption is:

Operating:

The vehicle can travel 12 miles per gallon of gasoline