a car travels from city A to city B along the route shown. If the car's average fuel usage is 29 miles per gallon, which of the following is the best estimate of the fuel usage for the entire trip?

what

c

step-by-step explanation:

6^2 or 36

step-by-step explanation:

6000n

6×1000n

6×10^3 n

so we need 6n need to be a perfect cube

so n has to be 6^2 so that 6n is 6^3

what i'm saying is if you let n be 6^2 you have 6^3×10^3 or 60^3 which is a perfect cube