Define the following concepts. Write the formula for each concept if possible. a. Net Present Value (NPV) b. Profitability Index (PI) c. Internal Rate of Return (IRR) d. Payback Period Question 2 A. Calculate the net present value of a project which requires an initial investment of $100,000 and it is expected to generate a cash inflow of $13,000 each year for 10 years. The target rate of return is 5% per year. B. What is your advice to the investor