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Mathematics, 16.10.2019 20:10 jasozhan

Thor invests $3000 in an account, with interest compounded continuously. if his investment doubles in value after 7.2 years, what interest rate is he earning? [use the formla a = pert and round answer to the nearest tenth.]
a) 8.5%
b) 9.6%
c) 12.3%
d) 14.0%

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