document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=611967>Question 611967</A>: <I><SPAN STYLE=\"word-break: break-all;\"> please help.\r<BR>\n" );
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document.write( "Katarina has nine pairs of shoes to arrange in her closet.  Assuming that she doesn't separate the pairs, how many different arrangements can she make? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #385215 by </B><A HREF=/tutors/aboutme.mpl?userid=richwmiller><B>richwmiller(17219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richwmiller><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=richwmiller><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=385215\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Does that mean that she keeps the pairs together or not?<BR>\n" );
document.write( "forced pairs<BR>\n" );
document.write( "9*8*7*6*5*4*3*2*1<BR>\n" );
document.write( "ie 9!<BR>\n" );
document.write( "pairs not forced<BR>\n" );
document.write( "18*17*16*15*14*13*12*11*10*9*8*7*6*5*4*3*2*1<BR>\n" );
document.write( "ie 18! </SPAN>\n" );
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