Can someone me not sure how to do it

What is the rotational symmetry of a wheel

Abby is preparing fruit punch for her party. she starts with a bowl filled with liquid that has 1/2 fruit juice and 1/2 sprite, but she decides it's too fruity. so she pours out 1/4 of the liquid, and then fills the bowl up again with sprite. what fraction of the punch is now sprite?

Nikolas calculated the volume of the prism. his work is shown below.