Please help lol with all 3

Answer:
3. Volume =
4 πr3
3
=
4 ×π×93
3
= 972π
= 3053.6280592893 inches3
2.Volume = πr2h
= π×22×12
= 48π
= 150.79644737231 inches3
1.Volume =
1 πr2h
3
=
1 ×π×72×15
3
= 245π
= 769.6902001295 inches3
Step-by-step explanation:
volume calculator