please help me and also please tell me all the formulas used to find answers or else i will not score anything!!

You wish to evaluate an investment. Consider the following cash flows over ten years for the investment. Given a required cost of capital of 25%, what are the NPV and internal rate of return? Should you invest? Why? 3 4 6 year cash flow-$250,000 9 $9,000 $80,000 5 $65,000 $51,000 $64,000 7 $30,000 8 $84,000 $19,000 $96.000 $17.000 What if the cash flows occur on the following dates? What are the NPV and internal rate of return now? Should you invest? Why? 6 1 10/15/22 2/24/23 2 9/02/23 3 6/23/24 dates 5 5/13/25 7 1/02/27 1/29/25 2/21/26 9 6/25/27 | 10/14/221 7/24/28