Bakery plans to purchase a new oven for its store. The oven has an estimated useful life of 4 years. The estimated pretax cash flows for the oven are as shown in the table that? follows, with no anticipated change in working capital. Bertha's Bakery has a 14?% ?after-tax required rate of return and a 33?% income tax rate. Assume depreciation is calculated on a? straight-line basis for tax purposes using the initial oven investment and estimated terminal disposal value of the oven. Assume all cash flows occur at? year-end except for initial investment amounts.

Relevant Cash Flows at End of Each Year 0 1 2 3 4 Initial machine investment $(90,000) Annual cash flows from operations (excluding the depreciation effect) $36,000 $36,000 $36,000 $36,000 Cash flow from terminal disposal of oven $10,000

1.	Calculate? (a) net present? value, (b) payback? period, and? (c) internal rate of return.
2.	Calculate accrual accounting rate of return based on net initial investment.