To engage in economic reasoning, you must compare:
a. total cost and total benefit.
b. marginal cost, sunk cost, and total benefit.
c. sunk cost and marginal cost.
d. marginal cost and marginal benefit.

Atennis club charges a monthly membership fee of $150 and charges it members $10 per hour to use a court. there's also $500 fee to become a member. stella joined the tennis club last spring, and she has been a member for 5 months. she has been playing 10 hours of tennis each month. stella values an hour of her time at $20. during a boring afternoon meeting, stella thinks about reserving a court to work on her serve for an hour tonight. what's stella's opportunity cost of working on her serve for an hour?

Why is the type of product sold in an industry an important characteristic? a firm that can differentiate its product from that of rivals may be able to charge a higher price for a superior product. a firm that sells intangible goods is usually considered a monopoly. service industries cannot differentiate their products, which makes it easy for new firms to enter the industry. expensive products are usually sold by perfectly competitive firms.

The mccolls have made an offer on a new home. the home is new construction and scheduled to be completed by the end of the year. they provide a purchase deposit--a check in the amount of $40,000--to their agent, suzette. suzette, at the broker's direction, deposits the earnest money in the broker's trust fund account within two business days of receipt of the funds. did suzette follow the proper procedures? a. no, the check should not have been cashed. if a check is used as an earnest money deposit, it is to be held until acceptance of the offer. the seller must also be informed the buyer's check is being held and not negotiated.b. yes, suzette deposited the earnest money in the broker's trust fund account as directed. she also deposited the check within three business days of receipt. unless there were written instructions to hold the check until acceptance of the offer, the check may be cashed.c. no, suzette needed to deposit the earnest money in the broker's trust fund account within two days of receipt, not necessarily two business days.d. both a and c