Rodrigo buys a jacket that is on sale for off the original price of $80. He has a coupon for an additional 10% off. How much does Rodrigo pay for the jacket?

Kelly is three years younger than her sister. the sum of their ages is 34 years. how old is kelly and how old is her sister?

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?

Suppose i pick a jelly bean at random from a box containing one red and eleven blue ones. i record the color and put the jelly bean back in the box. if i do this three times, what is the probability of getting a blue jelly bean each time? (round your answer to three decimal places.)