document.write( "Question 1055524: if a given set has 13 elements, how many of its subsets have somewhere from 4 through 8 elements? \n" ); document.write( "
Algebra.Com's Answer #670789 by Edwin McCravy(20055)\"\" \"About 
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document.write( "13C4+13C5+13C6+13C7+1313C8 = \r\n" );
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document.write( "715+1287+1716+1716+1287 = 6721\r\n" );
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document.write( "Edwin
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