c. Project C costs $7,500 and will generate net cash inflows of $3,500 before taxes for 5 years. The firm uses straight-line depreciation with no salvage value and is subject to a 30% tax rate. What is the payback period under the assumption that all cash inflows occur evenly throughout the year? (Round your answer to 2 decimal places.) d. Project D costs $7.500 and will generate sales of $4.800 each year for 5 years. The cash expenditures will be $1.900 per year. The firm uses straight-line depreciation with an estimated salvage value of $450 and has a tax rate of 30%. (1) What is the accounting (book) rate of return based on the original Investment? (Round your answer to 2 decimal places.) (2) What is the book rate of return based on the average book value? (Round your answer to 2 decimal places.)