Therefore, for each problem, please include your Excel or Sheets spreadsheet showing how you calculated i and/or the "true" IRR (IRR function; trial-and-error; graphing; or Goal Seek) and your result(s), as well as the Formula View that shows the formulas used. Use the examples from lecture. For each project Net Cash Flow below, a. Identify whether the cash flow is a simple or non-simple investment. b. Determine the possible \# of real, positive i*'s. Show how you arrived at that number. c. Determine i. If i is not the true IRR, determine the true IRR. d. Assuming this firm has a MARR of 15%, would you accept or reject the project