Answer:
21 miles per gallon of gas
Step-by-step explanation:
Solving the above question:
25 gallons of gas = 525 miles
1 gallon of gas = x miles
Cross Multiply
25 gallons × x miles = 525 miles × 1 gallons
x miles = 525 miles/25 gallons
x = 21 miles
Therefore, the miles that Haden's car travelled per gallon of gas is 21 miles per gallon of gas
