Assume that marginal revenue equals rising marginal cost at 100 units of output. at this output level, a profit-maximizing firm's total fixed cost is $600 and its total variable cost is $400. if the price of the product is $10 per unit and the firm produces 100 units, the firm will earn an economic profit of group of answer choices a)zero. b)$400. c)$100. d)$600. e)$1000.

Which of the following statements accurately describes how costs and benefits are calculated?

The total value of your portfolio is $10,000: $3,000 of it is invested in stock a and the remainder invested in stock b. stock a has a beta of 0.8; stock b has a beta of 1.2. the risk premium on the market portfolio is 8%; the risk-free rate is 2%. additional information on stocks a and b is provided below. return in each state state probability of state stock a stock b excellent 15% 15% 5% normal 50% 9% 7% poor 35% -15% 10% what are each stock’s expected return and the standard deviation? what are the expected return and the standard deviation of your portfolio? what is the beta of your portfolio? using capm, what is the expected return on the portfolio? given your answer above, would you buy, sell, or hold the portfolio?

Read the following paragraph, and choose the best revision for one of its sentences. dr. blake is retiring at the end of the month. there will be an unoccupied office upon his departure, and it is big in size. because every other office is occupied, we should convert dr. blake’s office into a lounge. it is absolutely essential that this issue is discussed at the next staff meeting. (a) because every other office is occupied, it’s recommended that we should convert dr. blake’s office into a lounge. (b) because every other office is filled, we should convert dr. blake’s office into a lounge.