P9-8 Calculating NPV [LO1] A firm evaluates all of its projects by using the NPV decision rule. a. At a required return of 29 percent, what is the NPV for this project? b. At a required return of 41 percent, what is the NPV for this project? P9-10 Calculating IRR [LO5] What is the IRR of the following set of cash flows? Multiple Choice 26.46% 27.78% 25.93% 26.99% 25.14% P9-11 Calculating NPV [LO1] For the following set of cash flows, a. What is the NPV at a discount rate of 0 percent? b. What is the NPV at a discount rate of 10 percent? c. What is the NPV at a discount rate of 18 percent