Calculate the following: a. The future value of lump-sum investment of $4,000 in four years that earns 3 percent. Round your answer to the nearest dollar. (Hint: Use Appendix A.1 or the Garman/Forgue companion website.) Round Future value of a Single Amount in intermediate calculations to four decimal places, b. The future value of $1,400 saved each year for three years that earns 7 percent. Round your answer to the nearest dollar (Hint: Use Appendix A.3 or the Garman/Forgue companion website.) Round Future value of Series of Equal amounts in intermediate calculations to four decimal places $ c. A person who invests $1,300 each year finds one oice that is expected to pay 4 percent per year and another choice that may pay 7 percent. What is the difference in return it the investment is made for four years? Round your answer to the nearest dollar. (Mint: Use Appendix A.3 or the German/Forgue companion website.) Round Future value of Series of Equal Amounts in intermediate calculations to four decimal places $ d. The amount a person would need to deposit today with a 6 percent interest rate to have $4,000 in three years. Round your answer to the nearest dollar. (Hint: Use Appendix A.2 or the Garman/Forque companion website. Round Present value of a Single Amount in intermediate calculations to four decimal places $