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An investment with an initial deposit of $12,750 is growing at an interest rate of 3.77% compounded monthly. Round all answers to two decimal places if necessary. 1. Find the accumulated amount of the investment at the end of 3 years. 2. The interest rate changes to 7.71% compounded semi-annually after the first 3 years. Calculate the accumulated amount in this investment at the end of 6 years. 3. Find the total amount of interest accumulated during the entire 6 years of the investment. Total Interest =$ (enter a positive value)