Abc bookstore sells packages of books that include both new and used books. new books cost $20 and used books cost $8. the bookstore wants to sell packages that have 36 books total, and the store charges $456 for each package. how many new and used books will be in each package?

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?