Hornton computer services, inc. has been in business for six months. the following are basic ­operating data for that period: month july aug. sept. oct. nov. dec. service hours 120 136 260 420 320 330 revenue $ 6,000 $ 6,800 $ 13,000 $ 21,000 $ 16,000 $ 16,500 operating costs $ 4,300 $ 5,300 $ 7,100 $ 11,200 $ 9,100 $ 10,600 required what is the average service revenue per hour in each month and the overall average for the six-month period? use the high-low method to estimate the total monthly fixed cost and the variable cost per hour. determine the average contribution margin per hour.

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.)

The interaction of individual choices because a type of fish is on the verge of extinction, the government imposes rules that prohibit fishing in the publicly owned spawning grounds. at first owners of fshing bouts complain about this restriction on where they can fish, but soon they notice that the number of adult fish swimming outside the protected area is much higher than it was before. with the restriction, each fishing boat ends up catching more fish than it did before the r which of the following principles of economic interaction best describes this scenario? o there is a tradeoff between equality and efficiency o markets usually lead to efficiency. o when markets do not achieve efficiency,government intervention can improve overall welfare o markets allocate goodseffectively

John has served as the chief operating officer (coo) for business graphics, inc., a publicly owned firm, the past 5 years. which of the following statements about john is correct? both john and the ceo of business graphics must certify to the sec that the firm's financial statements are accurate. as the coo, john will be ranked higher than the ceo but still below the cfo. in john's postition as the coo, it is highly unlikely that he would also be the chairperson of the board of directors. as the coo, john would typically be involved with accounting, finance, and asset purchase decisions.