The price of a radio was discounted 20% on the first day of a sale. the sale price was then discounted an additional 20% on the second day. what percent was the combined discount?

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?

Marla bought a book for $12.95, a binder for $3.49, and a backpack for $44.99. the sales tax rate is 6%. find the amount of tax and the total she paid for these items

Aubrey read 29 books and eli read 52 books what number is equal to the number of books aubrey read?