1.) Find the final amount A, if $50,000 is invested into a stock/bond fund that earns 6.8% per year compounded quarterly, and the investment is kept there for 12 years. Round off answer to the nearest cent. 2.) Jacks parents wish to set up a trust fund for his college education. Sixteen years from now they estimate that they will need $120,000. How much should they set aside now (single deposit) into a savings account that earns 4.26% per year compounded monthly, so that they will have $120,000 in 16 years? 3.) How much time will it take for an investment of $20,000 to double to $40,000 if the investment earns interest at the rate of 7.2% per year, compounded daily? (Express your answer in years and round off to two decimal places.)