document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=166260>Question 166260</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Helen’s Health Foods usually sells 400 cans of ProPac Muscle Punch per week when the price is $5 per can. After experimenting with prices for some time, Helen has determined that the weekly demand can be found using the equation\r<BR>\n" );
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document.write( "d = 600 – 40 p\r<BR>\n" );
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document.write( "where d is the number of cans and p is the price per can.<BR>\n" );
document.write( "a.)	Will Helen sell more or less Muscle Punch if she raises her price from $5.00?<BR>\n" );
document.write( "b.)	What happens to her sales every time she raises her price by $1.00?<BR>\n" );
document.write( "c.)	Graph the equation. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #122568 by </B><A HREF=/tutors/aboutme.mpl?userid=Mathtut><B>Mathtut(3670)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Mathtut><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=122568\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a.  d=600-40(5)=400  d=600-40(5.50)=380<BR>\n" );
document.write( "    as the price increases the the # of cans decrease<BR>\n" );
document.write( "b.  sales at $5 is 400(5)=2000  <BR>\n" );
document.write( "    sales at $6 is 360(6)=2160<BR>\n" );
document.write( "    sales at $7 is 320(7)=2240<BR>\n" );
document.write( "  sales at $7.50 300(7.5)=2250<BR>\n" );
document.write( "    sales at $8 is 280(8)=2240<BR>\n" );
document.write( "   <BR>\n" );
document.write( "    so sales rise on each $1 raise up to $7.50 then they begin to fall again.\r<BR>\n" );
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document.write( "c.I have no way to graph this </SPAN>\n" );
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