document.write( "Question 876109: how many ways can you arrange 9 pais of shoes in a row. the pairs stay together?
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Algebra.Com's Answer #528580 by josmiceli(19441)\"\" \"About 
You can put this solution on YOUR website!
I get \"+9%21+=+9%2A8%2A7%2A6%2A5%2A4%2A3%2A2%2A1+\"\r
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