Find an internal rate of return (IRR) for these cash flows.

Should you use the IRR you caculated in the previous question to decide whether the project is acceptable? Explain

Please show work for each question, cannot be done on excel. Thank you!

Use the following information to answer the next two questions. Consider the after-tax cash flows below: Year 0 1 2 3 4 Cash Flow -$76,000 $5,400 - $1,000 $502,000 $318,000 The required rate of return is 10.6 percent