document.write( "Question 1109200: Please Help I dont understand the 72 Rule.
\n" ); document.write( "Use the rule of 72 to estimate how long it would take a $30,000 deposit to double if you earn an annual interest rate of 12%
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Algebra.Com's Answer #724208 by MathLover1(20850)\"\" \"About 
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\n" ); document.write( "The rule says that to find the number of years required to double your money at a given interest rate, you just divide the interest rate into \"72\".\r
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\n" ); document.write( "\n" ); document.write( "\"72%2F12=6\" =>it will double in \"6\" years
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