Consider the following cash flows: Year Cash Flow 0 $ 33,000 1 14,400 2 17,300 3 11,800 a. What is the NPV at a discount rate of zero percent? (Do not round intermediate calculations and round your answer to the nearest whole number, e.g., 32.) b. What is the NPV at a discount rate of 12 percent? (Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.) c. What is the NPV at a discount rate of 23 percent? (A negative answer should be indicated by a minus sign. Do not round intermediate calculations and round your