Answer:
David's car gives mileage 7 miles per gallon
Step-by-step explanation:
David drives in a week = 168 miles.
He fills his gas tank twice a week, each fill up is for 12 gallons = 12 × 2 = 24 gallon per week
To calculate the mileage of David's car we use the formula
Gas mileage = [tex]\frac{\text{total miles}}{\text{gallons of fuel}}[/tex]
= [tex]\frac{168}{24}[/tex]
= 7 miles per gallon
David's car gives mileage 7 miles per gallon
