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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.

Find two numbers if their sum is 91 and the ratio is 6: 7?

Present age of man is 45 years, 5 years back his age was 4 times age of his son what is present age of his son?