please answer question number 2

Note: Show all of your work to arrive at a final result. Use periodic interest factors in the calculation of NPV and IRR 1. At the end of a tax year, a company has the following data: Gross receipts (sales) Cost of goods sold $300,000 $50,000 $15,000 Tax depreciation Book depreciation $8,000 Interest on debt $10,000 What is the company's tax liability (tax) and effective tax rate? 2. For the net cash flows given below, determine the following: (a) The net present value if MARR equals 15%. (b) The internal rate of return. (c) The payback period. End of Year 2 w Net Cash Flow -20,000 -20,000 -20,000 -20,000 45,000 20,000 10,000 20,000 20,000 20,000 20,000 10