Please advise the following in its entirety..

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What is the payback period for the following set of cash flows? (Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.) You're trying to determine whether to expand your business by building a new manufacturing plant. The plant has an installation cost of $12.9 million, which will be depreciated straight-line to zero over its four-year life. If the plant has projected net income of $1,944,300,$1,997,600,$1,966,000, and $1,419,500 over these four years, respectively, what is the project's average accounting return (AAR)? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) A firm evaluates all of its projects by applying the IRR rule. A project under consideration has the following cash flows: If the required return is 15 percent, what is the IRR for this project? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.)