Computer purchases: Out of 809 large purchases made at a computer retailer, 347 were personal computers, 398 were laptop computers, and 64 were printers. As a part of an audit, one purchase record is sampled at random. Round the answers to four decimal places, as needed.

(a) What is the probability that it is a laptop computer?

(b) What is the probability that it is not a printer?

One card is dealt from a 52 card deck. find the probability that the dealt card is a 4 or a black 7

Last year, a state university received 3,560 applications from boys. of those applications, 35 percent were from boys who lived in other states. part a)how many applications did the university receive from boys who lived in other states? part b)applications to the university from boys represented 40percent of all applications. how many applications did the university receive in all? i don't how to do part b so me and plz tell how you got your answer

Which expression is not a polynomial?