Are these right? i’m not sure can you give me the answers?

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?

Firms like papa john’s, domino’s, and pizza hut sell pizza and other products that are differentiated in nature. while numerous pizza chains exist in most locations, the differentiated nature of these firms’ products permits them to charge prices above marginal cost. given these observations, is the pizza industry most likely a monopoly, perfectly competitive, monopolistically competitive, or an oligopoly industry?

You have been solicited to conduct a performance evaluation for a public organization that has been corrupted over issues of personnel embezzling funds. before actually conducting the evaluation, you—the evaluator—need to know certain specifics to conduct a thorough evaluation. compose a proposal that describes what type of evaluation will be conducted. in the proposal, explain the type of public organization. describe some of the main services, products, and activities the organization provides to the public. describe the size of the problem, who is affected by the problem, how long the problem has been in existence, and how long the evaluation will take. also, describe what the evaluation will assess with respect to organizational leadership. finally, what outcomes do you propose the evaluation will to achieve for the organization?