Your opportunity cost of cutting hair at your barbershop is $20 per hour. electricity costs $6 per hour, and your weekly rent is $250. you normally stay open nine hours per day. what is the marginal cost of staying open for one more hour?
a) $276
b) $26
c) $250
d) $37

Suppose that a worker in agland can produce either 10 units of organic grain or 2 units of incense per year, and a worker in zenland can produce either 5 units of organic grain or 15 units of incense per year. there are 20 workers in agland and 10 workers in zenland. currently the two countries do not trade. agland produces and consumes 100 units of grain and 20 units of incense per year. zenland produces and consumes 50 units of grain and no incense per year. if each country made the decision to specialize in producing the good in which it has a comparative advantage, then the combined yearly output of the two countries would increase by a. 30 units of grain and 100 units of incense. b. 30 units of grain and 150 units of incense. c. 50 units of grain and 90 units of incense. d. 50 units of grain and 130 units of ince

An insurance company estimates the probability of an earthquake in the next year to be 0.0015. the average damage done to a house by an earthquake it estimates to be $90,000. if the company offers earthquake insurance for $150, what is company`s expected value of the policy? hint: think, is it profitable for the insurance company or not? will they gain (positive expected value) or lose (negative expected value)? if the expected value is negative, remember to show "-" sign. no "+" sign needed for the positive expected value

Which statement or statements are implied by equilibrium conditions of the loanable funds market? a firm borrowing in the loanable funds market invests those funds with a higher expected return than any firm that is not borrowing. investment projects which use borrowed funds are guaranteed to be profitable even after paying interest expenses. the quantity of savings is maximized, thus the quantity of investment is maximized. a loan is made at the minimum interest rate of all current borrowing.