please answer all 3 questions.

Find the Payback period for the following project: The answer should be calculated to two decimal places. Green Landscaping, Inc. is using net present value (NPV) when evaluating projects. Green Landscaping's cost of capital is 7.18 percent. What is the NPV of a project if the initial costs are $1,659,346 and the project life is estimated as 8 years? The project will produce the same after-tax cash inflows of $587,710 per year at the end of the year. Round the answer to two decimal places. Find the internal rate of return (IRR) for the following series of future cash flows. The initial outlay is $642,400. Year 1: 188,200 Year 2: 156,900 Year 3: 143,400 Year 4: 147,400 Year 5: 255,300 Round the answer to two decimal places in percentage form. (Write the percentage sign in the "units" box) You should use Excel or financial calculator