Witch figure can be formed from the net?

Which of the following is most likely the next step in the series? a3z, b6y, c9x, d12w, е15v, f18u

Acar travels at an average speed of 52 miles per hour. how long does it take to travel 299 miles

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.