Solve the following three independent scenarios: A grocery store is considering the purchase of a new refrigeration unit with an initial investment of $412,000, and the store expects a return of $100,000 in year one, $72,000 in years two and three, $65,000 in years four and five, and $38,000 in year six and beyond, what is the payback period? Payback period years. Round your Payback Period (PB) answer to two decimal places (i.e. 12.34). An auto repair company needs a new machine that will check for defective sensors. The machine has an initial investment of $224,000. Incremental revenues, including cost savings, are $120,000, and incremental expenses, including depreciation, are $50,000. There is no salvage value. What is the accounting rate of return (ARR)? Accounting Rate of Return (ARR) Round your ARR answer, in percentage format, to two decimal places (i.e. 12.34%).