Liv wants to buy a new pair of jeans for an upcoming party. she finds a pair she likes that was originally priced at $50 and is now on sale for $42. what is the percent of discount for this item?

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.