A worker deposits $650 at the end of each month for 4 years in an investment account with a guaranteed interest rate of 4.61% compounded monthly. (a) Find the value in the account at the end of the 4 years. (b) A rival financial planner offers the worker an investment strategy of depositing $550 a month for 4 years with a guaranteed interest rate of 6.57% compounded monthly. What is the value of this investment strategy at the end of 4 years? (c) How much more money is gained by investing in the better strategy described in part (a) or in part (b)?