document.write( "Question 1156738: Phone numbers in the U.S. consists of 10 digits, a 3-digit area code and a 7-digit local number. How many different telephone numbers are possible within each area code, assuming that the local number cannot begin with 0 or 1? \n" ); document.write( "
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Phone numbers in the U.S. consists of 10 digits, a 3-digit area code and a 7-digit local number. How many different telephone numbers are possible within each area code, assuming that the local number cannot begin with 0 or 1?
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\n" ); document.write( "7 digits.
\n" ); document.write( "The 1st digit is 1 of 8.
\n" ); document.write( "The other 6 are 1 of 10.
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