How long a tape does a police officer need to record a 3 minute confession at an operating speed of 7 1/2 inches per second ?

For one history test, keith had to answer 40 questions. of these 40 questions, keith answered 28 of them correctly. what percent did keith get on his history test? round your answer to the nearest tenth if necessary

Using the side-splitter theorem, daniel wrote a proportion for the segment formed by luke segment de. what is ec?

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