SOLUTION: The question is: how many different numbers can be created by selecting 4 of the digits from the number 8712395

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Question 1028117: The question is:
how many different numbers can be created by selecting 4 of the digits from the number 8712395
Answer by Edwin McCravy(20054)   (Show Source): You can put this solution on YOUR website!
Order matters, so permutations.

7 things Position 4 = 7P4 = 7*6*5*4 = 840

(Start with 7, come down 1 each time until 
you have 4 factors)

Edwin
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