document.write( "Question 349931: A Social Security number is used to identify each resident of the United States uniquely. The number is in the form xxx-xx-xxxx, where each x is a digit from 0 to 9. How many Social Security numbers can be formed? \n" ); document.write( "
Algebra.Com's Answer #250110 by rfer(16322)\"\" \"About 
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1.0x10^9 \n" ); document.write( "
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