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In 2010, the state of Nevada had two area codes. The first three are the area code and the next seven are the local telephone

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In 2010, the state of Nevada had two area codes. The first three are the area code and the next seven are the local telephone number. (Note that at this time, a local telephone number cannot begin with 0 or 1) How many telephone numbers could Nevada's phone system have accomodated?

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