Your division is considering two investment projects, each of which requires an up-front expenditure of $23 million. You estimate that the investments will produce the following net cash flows: a. What are the two projects' net present values, assuming the cost of capital is 5%? What are the two projects' net present values, assuming the cost of capital is 10%? What are the two projects' net present values, assuming the cost of capital is 15%? b. What are the two projects' IRRs at these same costs of capital