document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1149231>Question 1149231</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The amount of radioactive substance present, in grams, at time t, in years, is given by the formula <BR>\n" );
document.write( "y=20(3)^-0.6t. <BR>\n" );
document.write( "Find the number of grams present in 4 years. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #770571 by </B><A HREF=/tutors/aboutme.mpl?userid=greenestamps><B>greenestamps(13198)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=greenestamps><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=greenestamps><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=770571\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <br><BR>\n" );
document.write( "Use a calculator: plug in t=4 and evaluate.<br><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=20%283%29%5E%28-0.6%2A4%29 ALIGN=MIDDLE  ALT=\"20%283%29%5E%28-0.6%2A4%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = ??<br><BR>\n" );
document.write( " </SPAN>\n" );
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