How many different phone numbers are possible in the area code 503, if the first number cannot start with a 0 or 1

8000000

Step-by-step explanation:

503-xxx-

for the last 7 digit: 2-9 8 for first digit

                              0-9 10 for digit 2 to digit 7

Total: 8*10*10*10*10*10*10 = 8000000

this is not the answer this is just a question. is this middle school math?

step-by-step explanation:

3 is greater then both of those numbers