document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=891612>Question 891612</A>: <I><SPAN STYLE=\"word-break: break-all;\">  hellllp please <BR>\n" );
document.write( "A population of 10,000 citizens in a coastal North Carolina town is increasing its numbers by approximately 4% each year. Once the population reaches 20,000, they will be eligible for digital traffic lights in the center of town. In approximately how many years will it take the town to get digital traffic signals at this rate?\r<BR>\n" );
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document.write( "17.7 years<BR>\n" );
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document.write( "17.2 years<BR>\n" );
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document.write( "18.1 years<BR>\n" );
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document.write( "20 years<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 #539872 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39618)</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=539872\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%2810000%2A1.04%5Et=20000%29 ALIGN=MIDDLE  ALT=\"highlight_green%2810000%2A1.04%5Et=20000%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >, exponential growth, time t in years.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2A1.04%5Et=2 ALIGN=MIDDLE  ALT=\"1%2A1.04%5Et=2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1.04%5Et=2 ALIGN=MIDDLE  ALT=\"1.04%5Et=2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=log%2810%2C%281.04%5Et%29%29=log%2810%2C2%29 ALIGN=MIDDLE  ALT=\"log%2810%2C%281.04%5Et%29%29=log%2810%2C2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%2Alog%2810%2C1.04%29=log%2810%2C2%29 ALIGN=MIDDLE  ALT=\"t%2Alog%2810%2C1.04%29=log%2810%2C2%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%28t=log%2810%2C2%29%2Flog%2810%2C1.04%29%29 ALIGN=MIDDLE  ALT=\"highlight%28t=log%2810%2C2%29%2Flog%2810%2C1.04%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "You'll just need to evaluate that numeric expression. </SPAN>\n" );
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