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Mathematics 35 Online
OpenStudy (anonymous):

Jonny is able to invest $600 per month in an ordinary annuity (retirement account) at 7% compounded monhtly. After 10 years, the economy tanks. For the next 10 years, he can only afford $350 per month and the interest rates drop to 5% compoundly monthly during the second 10 years. How much total money does Johny have in his retirement account after 20 years?

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