7. Calculating IRR [LO5] A firm evaluates all of its projects by applying the IRR rule. If the required return is 14 percent, should the firm accept the following project? Year Cash Flow 0 -$28,000 1 12,000 2 15,000 3 11,000 8. Calculating NPV [LO1] For the cash flows in the previous problem, suppose the firm uses the NPV decision rule. At a required return of 11 percent, should the firm accept this project? What if the required return is 25 percent