In a simple economy with only businesses and households, suppose that the sum total of all the goods and services produced during the relevant periodlong dashpairs of shoes, candy bars, digital devices, etc. all summed togetherlong dashis 460 trillion units. the total dollar value of this flow of output is $45 trillion. the total amount of factors of productionlong dashlabor, land, capital, entrepreneurship, all summed togetherlong dashis 0.7 billion units. what is the flow of incomelong dashthat is, the sum of wages, rents, interest, and profits?
the flow of incomelong dashthe sum of wages, rents, interest and profitslong dashis

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?