SOLUTION: Mr. Edge needs 5 students, who will be arranged from tallest to shortest, for a demonstration. He has 21 students in his class. How many different combinations of students are poss

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Question 905920: Mr. Edge needs 5 students, who will be arranged from tallest to shortest, for a demonstration. He has 21 students in his class. How many different combinations of students are possible for the demonstration?
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