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In North America, phone numbers have the form XXX - XXX - XXXX . The first three digits give the area code, and the second
In North America, phone numbers have the form XXXXXXXXXX The first three digits give the area code,
and the second three digits indicate the exchange.
a Nick lives in North Carolina where the area code is If there were no restrictions on the remaining
seven digits, how many phone numbers would be possible in the area code?
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