Which of the following statements is true? It is unnecessary to analyze operating expenses over which management exercises discretion. Impairment charges do not need to be analyzed since they are generally a nonrecurring expense. A good way to improve operating profit is to cut repairs and maintenance costs as much as possible. Operating expenses can be easily analyzed by preparing a common-size income statement.

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?

Classify each of the following items as a public good, a private good, a natural monopoly good, or a common resource.(a) measles vaccinations (b) tuna in the pacific ocean (c) airline service in the united states (d) local storm-water system

Kelso electric is debating between a leveraged and an unleveraged capital structure. the all equity capital structure would consist of 40,000 shares of stock. the debt and equity option would consist of 25,000 shares of stock plus $280,000 of debt with an interest rate of 7 percent. what is the break-even level of earnings before interest and taxes between these two options?