please help with two of those wrong questions. thank you!

Excel Online Structured Activity: Capital budgeting criteria A company has a 12% WACC and is considering two mutually exclusive investments (that cannot be repeated) with the following cash flows: The data has been collected in the Microsoft Excel Online file below. Open the spreadsheet and perform the required analysis to answer the questions below. Open spreadsheet a. What is each project's NPV? Round your answer to the nearest cent. Do not round your intermediate calculations. Project A: \$ Project B: $ c. What is each project's MIRR? (Hint: Consider Period 7 as the end of Project B's life.) Round your answer to two decimal places. Do not round your intermediate calculations. Project A: % Project B: %