Keychains are $3.69 each if you buy two keychains they are $5.68 each how much do you save by buying two keychains

Find the slope of the line y =8/9x + 1.

33% of college students say they use credit cards because of the rewards program. you randomly select 10 college students and ask each to name the reason he or she uses credit cards. find the probability that the number of college students who say they use credit cards because of the rewards program is (a) exactly two, (b) more than two, and (c) between two and five inclusive. if convenient, use technology to find the probabilities.

Match each function with its rate of growth or decay