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16/11/2017 at 17:53

For years, Mrs. Meany has had a tradition of giving her students a list of books from which they had to choose two to read during winter break. This year, Mrs. Meany added n book(s) to the list. If there are now 99 more ways that two books can be selected, what is the sum of all possible values of n?

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i am Vietnam 09/12/2017 at 20:45

what is n

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