Jala put $600 in an interest bearing account with a annual compound interest rate of 5%. Jala determined that after seven years,
she will have a total balance of $844.26. Using the rule of 72, t = StartFraction 72 Over r EndFraction how many more years will it be before Jala’s $600 doubles in value? Round to the nearest tenth.
4 rows of 20 = 80 ... with one left over = 80 + 1 (81) 6 rows of 13 = 78 ... with three left over = 78 + 3 (81) 7 rows of 11 = 77 ... with four left over = 77 + 4 (81)
