Koby, age 16, works after school at FastFood from 4 p. m. until 11 p. m. On Friday night, therestaurant manager sees that Koby is exhausted, but insists that he remain until 4:30 a. m.,cleaning up, then demands that he work Saturday morning from 8 a. m. until 4 p. m. On Saturdayafternoon, as Koby drives home, he falls asleep at the wheel and causes a fatal car accident. Should FastFood be liable? What important values are involved in this issue? How does theGolden Rule apply?

Suppose that xtel currently is selling at $40 per share. you buy 500 shares using $15,000 of your own money, borrowing the remainder of the purchase price from your broker. the rate on the margin loan is 8%. a. what is the percentage increase in the net worth of your brokerage account if the price of xtel immediately changes to (a) $44; (b) $40; (c) $36? (leave no cells blank - be certain to enter "0" wherever required. negative values should be indicated by a minus sign. round your answers to 2 decimal places.) b. if the maintenance margin is 25%, how low can xtel’s price fall before you get a margin call? (round your answer to 2 decimal places.) c. how would your answer to requirement 2 would change if you had financed the initial purchase with only $10,000 of your own money? (round your answer to 2 decimal places.) d. what is the rate of return on your margined position (assuming again that you invest $15,000 of your own money) if xtel is selling after one year at (a) $44; (b) $40; (c) $36? (negative values should be indicated by a minus sign. round your answers to 2 decimal places.) e. continue to assume that a year has passed. how low can xtel’s price fall before you get a margin call? (round your answer to 2 decimal places.)

In the short-run, marginal costs are equal to the change in variable costs as output changes. ( mc = change in variable cost / change in quantity) assume that capital is fixed in the short-run. (a) start with the equation for marginal cost and derive an equation that relates marginal cost of production to the cost and productivity of labor. (b) draw a standard looking short-run marginal cost curve and use the equation you derived to explain its shape.

Zach will be using powerpoint in a speech he is giving to the local rotary club. according to your textbook, zach should a. check the equipment and setup of the room in which he will be speaking. b. distribute handouts of his slides for the audience to look at during his speech. c. bring a flash drive with a backup of his slides. d. all of the above. e. a and c only.