Which describes the combined variation in the formula V = xr^2h?
V varies directly with a, h, and r2.
V varies jointly with h and 2.
V varies inversely with h and 12.
V varies inversely with a, h, and r2.

A: 0.26 would be the answer

C, e, and a (hope it )

32

step-by-step explanation:

these are your clues: 1. kim ran 18 races2. this was four fewer races than twice thenumber, notice it says twice the number, so you would do the equation 18x2-4; which equals the number 32.thus, 32 is your answer.