SOLUTION: I am unsure on how to solve : How many 5 digit zip codes are possible if digits can be repeated? If there cannot be repetitions? I have the answer , but I am unable to figure out

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Question 880704: I am unsure on how to solve :
How many 5 digit zip codes are possible if digits can be repeated? If there cannot be repetitions?
I have the answer , but I am unable to figure out how to set the problem up. Thank you

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
How many 5 digit zip codes are possible if digits can be repeated?
10*10*10*10*10
If there cannot be repetitions?
10*9*8*7*6