A project that provides annual cash flows of $15,000 for 5 years costs $45,000 today. a. If the required return is 9 percent, what is the NPV for this project? b. Determine the IRR for this project. A firm evaluates all of its projects by using the NPV decision rule. Year Cash Flow -$28,000 23,000 17,000 6,000 a. At a required return of 27 percent, what is the NPV for this project? b. At a required return of 36 percent, what is the NPV for this project