Metaprometapro systems is a start-up company that makes connectors for high-speed internet connections. the company has budgeted variable costs of $ 140$140 for each connector and fixed costs of $ 5 comma 500$5,500 per month. metaprometapro's static budget predicted production and sales of 100100 connectors in august, but the company actually produced and sold only 7878 connectors at a total cost of $ 18 comma 000$18,000. metaprometapro's flexible budget variance for total costs is

Consider a treasury bill with a rate of return of 5% and the following risky securities: security a: e(r) = .15; variance = .0400 security b: e(r) = .10; variance = .0225 security c: e(r) = .12; variance = .1000 security d: e(r) = .13; variance = .0625 the investor must develop a complete portfolio by combining the risk-free asset with one of the securities mentioned above. the security the investor should choose as part of her complete portfolio to achieve the best cal would be a. security a b. security b c. security c d. security d