An investment earned the following returns over a four-year period: 28 percent, 21 percent, 1 percent, and -36 percent. what is the variance of the returns on this investment? a) 0.0618b) 0.0824c) 0.1400d) 0.1739e) 0.2473

Depasquale corporation is working on its direct labor budget for the next two months. each unit of output requires 0.61 direct labor-hours. the direct labor rate is $8.70 per direct labor-hour. the production budget calls for producing 6,700 units in may and 7,100 units in june. if the direct labor work force is fully adjusted to the total direct labor-hours needed each month, what would be the total combined direct labor cost for the two months?