The curtises' car traveled an average of 24 miles per gallon of gas at that rate how far could the car travel on a full tank of 18 gallons?

432 miles

Step-by-step explanation:

If the car can travel 24 miles on 1 gallon of gas, then on 18 gallons of gas it can travel 18 * 24 = 432 miles

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6