Question

Medal award!! ^^

Idk how to write a part of the question, so i'll draw the whole thing out ^^

Answer 1

(A) 3
(B) 9/2
(C) 9
(D) 18
(E) 81

Is it A?

Answer 2

\[r=\sqrt{3v/\pi^h}\]Let k be the number we are looking for:\[9r=\sqrt{3kv/\pi^h}\]Divide second expression by the first one:\[9=\sqrt{k}\rightarrow k=81\]

Answer 3

Ah...Thanks!