Answer:
B. 
Step-by-step explanation:
Given:
A spherical ball just fits inside a cylindrical can, 20 centimeters tall, with a diameter of 20 centimeters.
diameter of Sphere = 20 centimeters
hence radius = half of diameter = 
Hence we need to find the volume of sphere.
Volume of sphere = 
Here r is the radius of the circle.
Hence Volume of sphere = 
Hence Option B
is the correct answer.

Plug in what we know:

Multiply:

Add this to the original amount.

So he will have $6000 in his account after 5 years.
It would be -25% !!!!!!!!
The answer would be:
C. 144in2
hope that helped