SOLUTION: How many seven-digit phone numbers are possible if the first two digits cannot be zero or one?

Question 511581: How many seven-digit phone numbers are possible if the first two digits cannot be zero or one?
Found 2 solutions by oberobic, richard1234:
Answer by oberobic(2304) (Show Source): You can put this solution on YOUR website!
7*7*9*9*9*9*9 = 7^2*9^5 = 2,893,401
Answer by richard1234(7193) (Show Source): You can put this solution on YOUR website!
There are eight choices for each of the first two digits, and ten choices thereafter.

8*8*10*10*10*10*10 = 6,400,000
RELATED QUESTIONS
How many seven-digit telephone numbers are possible if the first two digits cannot be... (answered by Edwin McCravy)
How many seven-digit telephone numbers are possible if the first two digits cannot be... (answered by ikleyn)
How many 7 digit phone numbers are possible if the first digit cannot be 0 or 1 and the... (answered by ikleyn,greenestamps)
BellSouth Telephone Company wants to know how many telephone numbers are possible for... (answered by stanbon)
How many 7-digit telephone numbers are possible if the first digit cannot be zero and... (answered by Alan3354)
How many diffeent 7 digits telephone numbers are possible if the first digit cannot be... (answered by stanbon)
The Phone Number Problem:My office phone is 270-809-6219.If the first number of the phone (answered by swincher4391)
"how many 7-digit numbers are there containing two 3s and three 8s if neither of the... (answered by Edwin McCravy)
How many seven-digit phone numbers can be formed if the digit cannot be 0 or... (answered by Alan3354)