What is 371/2% as a fraction. simplify your answer..

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

Bob is putting books on a shelf and takes a break after filling 18 1/2 inches on the book shelf. the book shelf is now 2/3 full. how long is the entire bookshelf?

Jimmy can run 3.5 miles in 20 minutes. how far can ne run in one hour and ten minutes?