Hi, I am trying to help my daughter with her homework. She finished the last 20 question by herself and has 2 left that she's been stuck on for over an hour. Can anyone here lend a hand? She's giving it all she's got, just stuck.

1. What is the volume of a cylinder with a 4" diameter and 5" stroke?

2. A cylinder of gas 6'' tall contains 10 psi with 300cu. Inches of volume. If this is compressed down to 2" tall, what will be the pressure and volume if temp is held constant?

Thanks a Bunch!