3. (15 points) John saves 300 dollars to a bank account at the beginning of every year for 20 years. The bank account credits at i% annual effective interest rate at the end of each year. Those interest payments are reinvested into another bank earning (i/2)% annual effective interest rate. During the whole period, the overall yield rate is 8%. Determine i.

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3. (15 points) John saves 300 dollars to a bank account at the beginning of every year for 20 years. The bank account credits at i% annual effective interest rate at the end of each year. Those interest payments are reinvested into another bank earning (i/2)% annual effective interest rate. During the whole period, the overall yield rate is 8%. Determine