Assume that output was 1,000 units in january and 3,500 units in february, utility cost is a mixed cost, and the fixed cost of utilities was $2,000. what was the variable rate per unit of output for utilities cost?

Two assets have the following expected returns and standard deviations when the risk-free rate is 5%: asset a e(ra) = 18.5% σa = 20% asset b e(rb) = 15% σb = 27% an investor with a risk aversion of a = 3 would find that on a risk-return basis. a. only asset a is acceptable b. only asset b is acceptable c. neither asset a nor asset b is acceptable d. both asset a and asset b are acceptable