Power systems inc. manufactures jet engines for the united states armed forces on a cost-plus basis. the production cost of a particular jet engine is shown below: * direct materials = $200,000* direct labor = 150,000* manufacturing overhead: * supervisor's salary = 20,000* fringe benefits on direct labor = 15,000* depreciation = 12,000* rent = 11,000* total cost = $408,000if production of this engine was discontinued, the production capacity would be idle, and the supervisor would be laid off. the depreciation referred to above is for special equipment that would have no resale value and that does not wear out through use. when asked to bid on the next contract for this engine, the minimum unit price that power systems should bid is: 1) $408,000.2) $365,000.3) $397,000.4) $385,000.

Areal estate agent is considering changing her cell phone plan. there are three plans to choose from, all of which involve a monthly service charge of $20. plan a has a cost of $.42 a minute for daytime calls and $.17 a minute for evening calls. plan b has a charge of $.52 a minute for daytime calls and $.15 a minute for evening calls. plan c has a flat rate of $80 with 275 minutes of calls allowed per month and a charge of $.38 per minute beyond that, day or evening.a. determine the total charge under each plan for this case: 150 minutes of day calls and 70 minutes of evening calls in a month. (do not round intermediate calculations. round your answer to 2 decimal places. omit the "$" sign in your response.)c. if the agent will use the service for daytime calls, over what range of call minutes will each plan be optimal? (round each answer to the nearest whole number.include the indifference point itself in each answer.)d. suppose that the agent expects both daytime and evening calls. at what point (i.e., percentage of total call minutes used for daytime calls) would she be indifferent between plans a and b?