The answer is A. If they buy 16 masks and 12 noses then that is 28.
Answer:
Step-by-step explanation:
for c it would be 1\8
for E it would be 3\8
V=(1/3)hπr^2 where h=height and r=radius
given
radius=3
height=2a
r=3
h=2a
v=(1/3)hπr^2
v=(1/3)(2a)π(3)^2
v=(1/3)2aπ9
v=6aπ
so the expression would be some variaant of v=6aπ
