Abag contains 7 blue, 12 red, and 6 orange marbles. find each probability if you draw one marble at random from the bag. write as a fraction. a) p (purple) b) p (red or orange) c)p(not blue)

You got a job selling magazines door-to-door. you are paid $100 per day plus $1.50 for each magazine you sell. which recursive formula models this situation?

Sam opened a money-market account that pays 3% simple interest. he started the account with $7,000 and made no further deposits. when he closed the account, he had earned $420 in interest. how long did he keep his account open?

Parallelogram efgh is a rectangle. he = 6, and fe = 8. find ge: and find fj: