Two consecutive numbers add up to 40. What are the 2 numbers? Please hurry and help

Which function has the same domain as y=2x

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

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.