3. A bookstore is putting together a gift balket of 11 books for a silent auction prize. They would like to include 7 fiction books and 4 non-fiction books from the best-seller list. Right now, there are 15 fiction books and 10 non-fiction books on the best-seller list. Tony thinks that 25C7 X 25C4 is the correct way to find the number of gift baskets. Jenny thinks that 15C7+ 10 C4 is the correct way to find the number of gift baskets. a) Both Tony and Jenny are incorrect. Explain each of their mistakes. b) Correctly determine the number of gift baskets that can be made.

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