The manager of a car wash must decide whether to have one or two wash lines. one line will mean a fixed cost of $5,900 a month, and two lines will mean a fixed cost of $10,620 a month. each line would be able to process 15 cars an hour. variable costs will be $4 per car, and revenue will be $5.95 per car. the manager projects an average demand of between 14 and 18 cars an hour. would you recommend one or two lines? the car wash is open 270 hours a month. (round your intermediate fixed cost values to nearest dollar amount.)

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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?

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