document.write( "Question 494704: How many SSN are able to be used if the following numbers will never be used:
\n" ); document.write( "1) nubers with all zeros in any digit group (000-xx-xxxx, xxx-00-xxxx, xxx-xx-0000.
\n" ); document.write( "2) numbers with the first set of 666
\n" ); document.write( "3) numbers 987-65-4320 through 987-65-4329\r
\n" ); document.write( "\n" ); document.write( "Obviously there are 1,000,000,000 possibilities minus 10 for number 3 above but I don't know how many more to subtract for numbers 1 and 2 above.
\n" ); document.write( "Thank you. \n" ); document.write( "
Algebra.Com's Answer #335759 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
How many SSN are able to be used if the following numbers will never be used:
\n" ); document.write( "1) numbers with all zeros in any digit group
\n" ); document.write( "(000-xx-xxxx::::10^6
\n" ); document.write( " xxx-00-xxxx::::10^7
\n" ); document.write( " xxx-xx-0000::::10^5
\n" ); document.write( "Ans: 10^6+10^7+10^5 = 11,100,000
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\n" ); document.write( "2) numbers with the first set of 666:::10^6
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\n" ); document.write( "3) numbers 987-65-4320 through 987-65-4329
\n" ); document.write( "I'll leave that to you.
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\n" ); document.write( "cheers,
\n" ); document.write( "Stan H.
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