I need the answer and calculations for NPV and IRR. I do not know how to solve for either IRR or NPV with multiple rates. Please help and provide the answer with an explanation. Thank you so much!

The following table shows the forecast cash flows for two projects: Now suppose that the term structure is upward sloping and investors demand a higher return on the more distant flows as in the following table: a-1. Calculate the IRR on the two projects. a-2. Calculate the NPV on the two projects. a-3. Do the two measures give the same ranking for the two projects? Complete this question by entering your answers in the tabs below. Calculate the IRR on the two projects. Note: Do not round intermediate calculations. Round your answers to 2 decimal places. The following table shows the forecast cash flows for two projects: Now suppose that the term structure is upward sloping and investors demand a higher return on the more distant flows as in the following table: a-1. Calculate the IRR on the two projects. a-2. Calculate the NPV on the two projects. a-3. Do the two measures give the same ranking for the two projects? Complete this question by entering your answers in the tabs below. Calculate the NPV on the two projects. Note: A negative answer should be indicated by a minus sign. Do not round intermediate calculations. Round your answers to 2 decimal places