SOLUTION: How many seven digit phone numbers are there when 0 and 1 cannot be the leading number?
Algebra.Com
Question 443012: How many seven digit phone numbers are there when 0 and 1 cannot be the leading number?
Answer by swincher4391(1107) (Show Source): You can put this solution on YOUR website!
You have 8 choices for the first number
You have 10 for the other 6.
Then 8 * 10^6 = 8 million.
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