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S. Costs are if they have already been incurred and cannot be recovered 1. and cost Mixed costs exhibit both behaviours. U. Fixed costs that Increase over a given range of activity exhibit cost behaviour. V. costs consist of direct material, direct labour, and indirect manufacturing support costs. W. A is an item for which a separate measure of costs is desired. X. In situations where there is a capacity constraint, maximizing of the limited resource maximizes net revenue. y. A cost driver is always a cost with respect to a given cost object. z. Earning interest on accumulated interest is known as aa. If an investment generates a positive rate of return, its value always exceeds its value. bb. A combination of relevant cost concepts, discounted cash flow analysis, and income tax effects is used to calculate net present value of purchases. cc. If a manufacturing firm is considering whether to outsource one component of its production process, are irrelevant. dd. Applying a higher discount rate to a future cash flow produces a present value. e. Assuming a discount rate of , the present value of an after-tax inflow of $100 received at the end of each of six year is $388.90. Assuming a discount rate of 8% and an income tax rate of 30% the present value of a pre-tax cash inflow of $100 received at the end of each of four years is Assuming a discount rate of 4% and a 40% income tax rate, t present value of a single $100 pre-tax cash outflow paid at th end of 10 years is a resource that exhibits fixed cost behaviour be a cost drive e an example if so