document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=854477>Question 854477</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 7, 21, 8, 72, 9, ? What completes the sequence 81 243 123 136<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #515711 by </B><A HREF=/tutors/aboutme.mpl?userid=Edwin+McCravy><B>Edwin McCravy(20056)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Edwin+McCravy><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=Edwin+McCravy><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=515711\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  7, 21, 8, 72, 9, ? \r<BR>\n" );
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document.write( "1st term = 7\r<BR>\n" );
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document.write( "2nd term = 7×3<sup>1</sup> = 7×3 = 21<BR>\n" );
document.write( "3rd term = 7+1 = 8\r<BR>\n" );
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document.write( "4th term = 8×3<sup>2</sup> = 8×9 = 72<BR>\n" );
document.write( "5th term = 8+1 = 9\r<BR>\n" );
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document.write( "6th term = 9×3<sup>3</sup> = 9×27 = 243<BR>\n" );
document.write( "7th term = 9+1 = 10\r<BR>\n" );
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document.write( "Edwin</pre>\r<BR>\n" );
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