could you answer both please?

7- A company has the following three independent investment projects available this year. The firm's cost of capital is 12%. a. Which projects are acceptable? Why? b. What is your decision if the projects are mutually exclusive? 8- A company is considering a project with the following cash flows: Initial Outlay =$100,000 Cash Flows: Year 1=$40,000 Year 3=$50,000 Year 5=$60,000 If the appropriate discount rate is 12%, what is the NPV of this project