Based on market research, a film production company in ectenia obtains the following information about the demand and production costs of its new dvd: demand: p=1,200−10q total revenue: tr=1,200q−10q^2 marginal revenue: mr=1,200−20q marginal cost: mc=300+10q
where q indicates the number of copies sold and p is the price in ectenian dollars. (a.) find the price and quantity that maximizes the company's profit. (b.) find the price and quantity that would maximize social welfare. (c.) find the dead weight loss. (d.) suppose, in addition to the costs above, the director of the film has to be paid. the company is considering four options: (i.) a flat fee of 2,000 ectenian dollars; (ii.) 50 percent of the profits; (iii.) 150 ectenian dollars per unit sold; and (iv.) 50 percent of the revenue.

mark, a civil engineer, entered into a contract with david. as per the contract, mark agreed to design and build a house for david for a specified fee. mark provided david with an estimation of the total cost and the contract was mutually agreed upon. however, during construction, when mark increased the price due to a miscalculation on his part, david refused to pay the amount. this scenario is an example of a mistake.

In a perfectly competitive market, the long-run market supply curve tends to be horizontal or nearly so. what is another way to state this fact? (a) market supply is much more elastic in the long run than the short run. (b) in the long run, average total cost is minimized. (c) in the long run, price equals marginal cost. (d) market supply is much less elastic in the long run than the short run.

Jason started last week with $900 in his checking account. during the week, he wrote the checks below. at the end of the week, jason received a paycheck for $534.59. he recorded all of these transactions in his check register. trans typ./ check no. date description of transaction payment/ debit deposit/ credit (+) balance 900 00 241 12/4 miller's food market 53.21 53 21 groceries 846 79 242 12/7 frank's auto parts 24.05 24 05 oil and filter 822 74 243 12/8 mike's barber shop 15.00 15 00 haircut 807 74 deposit 12/9 paycheck 534.59 534 59 1,342 33 evaluate jason's check register. a. jason did a good job; everything is correct. b. the final balance is wrong; jason did not add everything correctly. c. jason should have written debit instead of deposit for the transaction type. d. jason entered the amount for his paycheck in the wrong column.