During June, Zinc Company produced 10,000 chainsaw blades. The standard quantity of material allowed per unit was 2 pounds of steel per blade at a standard cost of $5 per pound. Zinc determined that it had a favorable materials usage variance of $1,500 for June. Calculate the actual quantity of materials used by Zinc Company in June.

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