Solve the Problem $\{ x \mid x > 9 \}$ B) $x \mid 0 < x < 81 \}$

Solve the problem.
-For what positive numbers will the cube of a number exceed 9 times its square?

A) $\{ x \mid x > 9 \}$
B) $x \mid 0 < x < 81 \}$
C) $x \mid 0 < x < 9 \}$
D) $x \mid x > 81 \}$