SOLUTION: a social security number has nine digits. How many social security numbers are possible?

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Question 112388: a social security number has nine digits. How many social security numbers are possible?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Each digit can take values from (0-9) or 10 values
9 slots with 10 values = 10%5E9 of 1,000,000,000 choices