document.write( "Question 101223: Joan was charged $18 interest for 1 month on a $1200 credit card balance.What is the monthly interest rate? \n" ); document.write( "
Algebra.Com's Answer #73688 by Nate(3500)\"\" \"About 
You can put this solution on YOUR website!
I = PRT
\n" ); document.write( "Interest = Principle * Rate * Time
\n" ); document.write( "18 = 1200 * Rate * 1
\n" ); document.write( "3/200 = Rate
\n" ); document.write( "1.5% = Rate
\n" ); document.write( "
\n" );