When a spherical balloon is filled with air, it has a radius of 3 inches. Which of these gives the best estimate for the volume of air in the balloon in cubic inches?

A. 63.6

B. 108.0

C. 113.1

D. 150.8

By definition, the volume of a sphere is given by:

V = (4/3) * (pi) * (r ^ 3)

where,

r: radius of the sphere.

Substituting we have:

V = (4/3) * (pi) * ((3) ^ 3) = 113.08 in ^ 3

answer

the best estimate for the volume of air in the balloon in cubic inches is

C. 113.1