Answer:
It can hold 904.78 in³ of air
Explanation:
radius = 12/2 = 6
To calculate the volume of a sphere we have to use the following formula: 
V = volume 
r = radius = 6in
π = 3.14 16
V = ⁴⁄₃πr³ 
 
we replace the known values
V = ⁴⁄₃ * 3.14 * (6in)³ 
 
V = 4.1888 * 216 in³ 
 
V = 904.7808 in³ 
round to the nearest hundredth
V = 904.78 in³ 
 
The volume of the sphere is 904.78 in³