document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=432643>Question 432643</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A grandmother agrees to purchase a cell phone for emergency use only. AT&T now offers such a plan for $9.99 per month and $0.07 for each minute, t, the phone is in use.<BR>\n" );
document.write( "A) write a linear function that describes the monthly cost C in terms of the time in minutes the phone is used.<BR>\n" );
document.write( "B)If the grandmother used her phone for 20 minutes during the first month, what was her bill? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #299978 by </B><A HREF=/tutors/aboutme.mpl?userid=jorel1380><B>jorel1380(3719)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jorel1380><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=jorel1380><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=299978\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A)C=9.99+.07t<BR>\n" );
document.write( "B)C=9.99+.07(20)=9.99+1.40=11.39<BR>\n" );
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