3 part question for finance please help!

Big Company is evaluating two projects, Project A and Project B. Both projects are of equal risk. Big Company has a WACC of 9%. The expected Free Cash Flows of the projects are as follows: Compute the Internal Rate of Return (IRR) for "A". Show your inputs/work for partial credit. The Internal Rate of Return of Project " B " is 14.83%. If Projects " A " and " B " are independent, considering only at the IRR method, which project(s) should Big Company proceed with? Explain your answer. The Internal Rate of Return of Project " B " is 14.83%. If Projects " A " and " B " are mutually exclusive, considering only at the IRR method, which project(s) should Big Company proceec with? Explain your