Câu 1: đặc điểm thị trương nông sản ? Câu 2: phân tích sự khác nhau về nguyên tắc tối đa hóa lợi nhuận giữa doanh nghiệp độc quyền và doanh nghiệp cạnh tranh hoàn hảo?

How can firms use marginal analysis to determine the price of a product? a) profit maximization can occur when the marginal cost exceeds the marginal revenue. b) the total cost of production can determine the individual unit price of a product. c) marginal analysis can be used to determine at what price profit maximization occurs. d) firms can calculate the marginal cost of a product and set the price lower than the cost.

In 2009, roughly of people age 12 or older who did not drink alcohol were current users of illegal drugs. a. 4% b. 10% c. 13% d. 20%

  usually, loads of more than pounds require the assistance of a second person.           a. 40   b. 20   c. 50   d. 30