An investment costs $18,450 and will generate cash flow of $4,500 annually for five years. The firm's cost of capital is 9 percent. Use Appendix D to answer the questions. a. What is the investment's internal rate of return? Round your answer to the nearest whole number. % Based on the internal rate of return, should the firm make the investment? The investment -Select- v made. b. What is the investment's net present value? Use a minus sign to enter a negative value, if any. Round your answer to the nearest dollar. $ Based on the net present value, should the firm make the investment? The investment -Select- made