Briggs is planning to make a batch of homemade play dough for an art project. Briggs plots points on the coordinate plane below to show the amount of salt he needs for different amounts of water.

What kinds of numbers have an odd number of factors?

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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.