SOLUTION: A telephone number consists of seven digits, the first three representing the exchange. How many different telephone numbers are possible within the 717 exchange?

Algebra ->  Permutations -> SOLUTION: A telephone number consists of seven digits, the first three representing the exchange. How many different telephone numbers are possible within the 717 exchange?      Log On


   

Question 750262: A telephone number consists of seven digits, the first three representing the exchange. How many different telephone numbers are possible within the 717 exchange?
Answer by FrankM(1040) About Me  (Show Source):
You can put this solution on YOUR website!
10,000
all numbers from 0000 through 9999