document.write( "Question 267348: how many combinations can u arrange 7 books on a shelf
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Algebra.Com's Answer #196235 by Alan3354(69443) You can put this solution on YOUR website! The 1st is 1 of 7 \n" ); document.write( "The 2nd is 1 of 6 \n" ); document.write( "etc \n" ); document.write( "--> 7*6*5*4*3*2*1 \n" ); document.write( "= 5,040 \n" ); document.write( "------------ \n" ); document.write( "That's 7! \"7 factorial\" \n" ); document.write( " \n" ); document.write( " |