document.write( "Question 480306: A typical Social Security number is 555-47-5593. How many Social Security numbers are possible if the first two digits cannot be 0?
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Algebra.Com's Answer #328954 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! It's 9 digits \n" ); document.write( "------------- \n" ); document.write( "For the 1st 2, it's 1 of 9, the other 7 are 1 of 10 \n" ); document.write( "--> 9*9*10E7 \n" ); document.write( "= \n" ); document.write( "= 810,000,000 \n" ); document.write( " \n" ); document.write( " |