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How many telephone numbers are there in the 509 area code? Telephone numbers may not start with the number 0 or 1. They also must not begin with 911 or 555. Do not consider other special circumstances.

2 Answers

4 votes

Answer:

7,999,998

Explanation:

User Aneisa
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7,999,998 is the number you are looking for
User Orchid
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