Cho is training for a triathlon, a timed race that combines swimming, biking, and running. Consider the following sentence: In order to swim for an hour, Cho must take time away from work, where she earns $12 per hour. This is in addition to paying a $4 entrance fee for the poolWhich basic principle of individual choice do these statements best illustrate?
1) The cost of something is what you give up to get it
2) Markets are usually a good way to organize economic activity
3) People usually exploit opportunities to make themselves better off.
4) Trade can make everyone better off

Which of the following statements is correct? a. two firms with identical sales and operating costs but with different amounts of debt and tax rates will have different operating incomes by definition. b. free cash flow (fcf) is, essentially, the cash flow that is available for interest and dividends after the company has made the investments in current and fixed assets that are necessary to sustain ongoing operations. c. retained earnings as reported on the balance sheet represent cash and, therefore, are available to distribute to stockholders as dividends or any other required cash payments to creditors and suppliers. d. if a firm is reporting its income in accordance with generally accepted accounting principles, then its net income as reported on the income statement should be equal to its free cash flow. e. after-tax operating income is calculated as ebit(1 - t) + depreciation.

The basic difference between macroeconomics and microeconomics is that: a. microeconomics looks at the forest (aggregate markets) while macroeconomics looks at the trees (individual markets). b. macroeconomics is concerned with groups of individuals while microeconomics is concerned with single countries. c. microeconomics is concerned with the trees (individual markets) while macroeconomics is concerned with the forest (aggregate markets). d. macroeconomics is concerned with generalization while microeconomics is concerned with specialization.

Aprice control is: question 1 options: a)a tax on the sale of a good that controls the market price.b)an upper limit on the quantity of some good that can be bought or sold.c)a legal restriction on how high or low a price in a market may go.d)control of the price of a good by the firm that produces it.