Answer:
They used 3.14 for pi:


Step-by-step explanation:
is the volume of a sphere with radius r.
I think that is the diameter given in the picture.
The radius is half the diameter.
So the radius is 5 since the diameter is 10.
Plug in this gives you:

If you want to solve the equation

for C, you can work like this: subtract P from both sides:

Add C to both sides:

Answer:
2.14
Step-by-step explanation:
2.14x24=51.36