Answer:
1. 400π or about 125663.7061
2. 3.5π or about 10.99557429
3. 4π or about 12.56637061
4. 3π or 9.42 (I used 3.14 for pi like the directions said)
5. 56π or 175.84 (I used 3.14 for pi like the directions said)
Step-by-step explanation:
I'll add these later if you like.