Chapter 2 - Functions, Equations, and Graphs - 2-3 Linear Functions and Slope-Intercept Form - Practice and Problem-Solving Exercises - Page 80: 65

$C$

We need to isolate $h$ step by step. First, we divide each side by $r^2$: $\frac{V}{r^2} = \frac{1}{3} \pi h$ Divide each side by $\pi$: $\frac{V}{\pi r^2} = \frac{1}{3}h$ Divide each side by $\frac{1}{3}$, meaning we multiply each side by $3$: $h = \frac{3V}{\pi r^2}$ This answer matches option $C$.