How to solve for -4n+4>48

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.

If the scale factor between two circles is 2x/5y what is the ratio of their areas?

Sara made $253 for 11 hours of work. at the same rate how much would he make for 7 hours of work?