SOLUTION: Students must rank the top five buildings on a college campus. If there are nine buildings on campus, how many different ways can the buildings be ranked?

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Question 1172690: Students must rank the top five buildings on a college campus. If there are nine buildings on campus, how many different ways can the buildings be ranked?
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
this would be 9*8*7*6*5=15,120
nine ways for the first*eight ways for the second...