## Thinking Mathematically (6th Edition)

$510$ gallons
At the beginning of the year, the odometer read $25,124$ miles. At the end of the year, the odometer read $37,364$ miles. The car averaged $24$ miles per gallon. The car traveled $37,364-25,124=12,240$ miles. This means that the car used $12,240\div24=510$ gallons of gasoline.