Plz help I forget (this is timed)

Carver company produces a product which sells for $30. variable manufacturing costs are $15 per unit. fixed manufacturing costs are $5 per unit based on the current level of activity, and fixed selling and administrative costs are $4 per unit. a selling commission of 10% of the selling price is paid on each unit sold. the contribution margin per unit is:

Christopher kim, cfa, is a banker with batts brothers, an investment banking firm. kim follows the energy industry and has frequent contact with industry executives. kim is contacted by the ceo of a large oil and gas corporation who wants batts brothers to underwrite a secondary offering of the company's stock. the ceo offers kim the opportunity to fly on his private jet to his ranch in texas for an exotic game hunting expedition if kim's firm can complete the underwriting within 90 days. according to cfa institute standards of conduct, kim: a) may accept the offer as long as he discloses the offer to batts brothers. b) may not accept the offer because it is considered lavish entertainment. c) must obtain written consent from batts brothers before accepting the offer.

Greenway industries is a major multinational conglomerate. its business units compete in a range of industries, including home appliances, pharmaceuticals, commercial real estate, and plastics manufacturing. although its largest business unit, which produces kitchen appliances, is among the most profitable in the industry, it generates only 35 percent of the company's revenues. which of the following is most likely true of greenway's stock price? a. it is valued at less than the sum of its individual business units. b. it is valued at greater than the sum of individual business units. c. it is valued at the exact sum of individual business units. d. it is consistently lower than the industry average. it is valued at greater than the sum of individual business units.