Acar travels 17 miles on one gallon of gas.

express y in terms of x if the car uses y gallons to travel x miles

y*17x

Step-by-step explanation:

y is a gallon so LEARN!

452,489 to the nearest thousand is 452,000

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