In how many different circular formations can 8 cheerleaders stand?

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?

Are the corresponding angles congruent? explain why or why not.

What is the answer to the question 5x+2x