XYZ Corporation is considering a machine that will save $9,000 a year in cash operating costs each year for the next six years. At the end of six years it would have no salvage value. If this machine costs $33,165 now, the machine's internal rate of return is closest to (Ignore income taxes.):

Regarding the flow of costs through the inventory accounts, which of the following statements is incorrect? a. the costs flow from raw materials inventory to work-in-process inventory to finished goods inventory. b. the format for computing the amount used, manufactured, or sold is the same for all three inventory accounts. c. the final amount at each stage is added at the beginning of the next stage. d. purchases of raw material and freight in are debited to the work-in-process inventory account.