SOLUTION: if there are 13 books on the shelf and you choose 5 of them to line up on the second shelf how many different ways to line them up? order unimportant
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Question 174117: if there are 13 books on the shelf and you choose 5 of them to line up on the second shelf how many different ways to line them up? order unimportant Answer by checkley77(12844) (Show Source):
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