Maria needed 88 gallons of gas to fill her car's gas tank. The mileage odometer read 40 comma 00040,000 miles. When the odometer read 40 comma 18040,180, Maria filled the tank with 99 gallons. At the end of the trip, she filled the tank with 1616 gallons, and the odometer read 40 comma 48440,484 miles. How many miles per gallon did she get for the entire trip?