document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=979123>Question 979123</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Gasoline prices are rising at a rate of 0.8% per month. What is their approximate doubling time. (I think I got this part = 87.5 months?) By what factor will prices increase in 1 year? If gasoline costs $2.25 per gallon today, what will the price be in 8 years, assuming no change in the trend. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #600469 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39620)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=600469\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> That seems good, depending on what source you use for natural logarithms.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=p%2Ae%5E%280.008t%29 ALIGN=MIDDLE  ALT=\"y=p%2Ae%5E%280.008t%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "y, value for price after time t in months;<BR>\n" );
document.write( "p, initial value when t is 0 months;\r<BR>\n" );
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document.write( "Finding time to double the price:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2=1%2Ae%5E%280.008t%29 ALIGN=MIDDLE  ALT=\"2=1%2Ae%5E%280.008t%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=ln%282%29=0.008t ALIGN=MIDDLE  ALT=\"ln%282%29=0.008t\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t=ln%282%29%2F0.008 ALIGN=MIDDLE  ALT=\"t=ln%282%29%2F0.008\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28t=86.64%29 ALIGN=MIDDLE  ALT=\"highlight%28t=86.64%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >  but you might say 86.6 months.\r<BR>\n" );
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document.write( "Eight years is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=8%2A12=96%2Amonths ALIGN=MIDDLE  ALT=\"8%2A12=96%2Amonths\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
document.write( "y after 96 months,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=2.25%2Ae%5E%280.008%2A96%29 ALIGN=MIDDLE  ALT=\"y=2.25%2Ae%5E%280.008%2A96%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28y=4.85%29 ALIGN=MIDDLE  ALT=\"highlight%28y=4.85%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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