Can someone please answer ASAP I will give you five stars

Answer:
[tex] 12\pi \: {units}^{3} [/tex]
Step-by-step explanation:
[tex]V_{cone} = \frac{1}{3} \pi {r}^{2} h \\ = \frac{1}{3} \pi \times {3}^{2} \times 4 \\ = \pi \times 3 \times 4 \\ = 12\pi \: {units}^{3} \\ [/tex]