Ineed with 1 through 4 solve for 50 points

1. I am not given enough informtion.

2. v/(4/3)π=r³
201/(4/3)π=r³
47.98=r³
3.63in

3.v=(4/3)πr³
v=(4/3)π7³
v=343(4/3)π
v=1436.75m

4. o is circumference:
v=((o/π)/2)³ (4/3) π
v=((50.3/π)/2)³ (4/3) π
v=513((4/3)π)
v=2148cm

Hope this helps :)