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Mathematics 6 Online
OpenStudy (anonymous):

@Nurali @countonme123 Buffy just put some money into a CD that pays 10.1% interest, compounded monthly. According to the rule of 72, in approximately how many years will she have 4 times the amount of money that she has now? A. 7.1 years B. 21.4 years C. 28.5 years D. 14.3 years

OpenStudy (anonymous):

28.5? i think

OpenStudy (anonymous):

yup you do the same thing but multiply by 4 for 4 times the amount

OpenStudy (anonymous):

correct answer is D, so it's 14.3 years apexvs.com

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