Answer:
27.6 miles per gallon
Step-by-step explanation:
Lisa's family drove 830.76 miles to visit her grandparents.
Lisa calculated that they used 30.1 gallons of gas.
To calculate the car average = \(\frac{\text{distance covered}}{\text{fuel used}}\)
= \(\frac{830.76}{30.1}\)
= 27.6 miles/gallon
The mileage of the car would be 27.6 miles/gallon.