Please refer to the background information below to answer the following three questions. In Utopia, there are two groups of suppliers, A and B, for shark fins with the following individual supply relations respectively: Supply A: P=11+4+1Q Supply B: P =21+2.7Q The market demand is P=79.5-230Q where P is price per kg of shark fins (in thousand dollars), @) is quantity of shark fins in kgs. 7. Without government intervention, the market equilibrium price is [ Answer07A | thousand dollars per kg, and the market equilibrium quantity is [ Answer07B | kgs. 8. Due to concerns over the sustainability of sharks, the central planner forces the economy to reduce shark fin transaction by 50%. We will expect a minimum welfare loss of [ Answer08 | thousand dollars when compared to the market without intervention. 9. Suppose the central planner wants to achieve the same quantity in the previous question using taxation or subsidy. The central planner should impose a [ Answer09A | (A. tax, B. subsidy) of | Answer09B | thousand dollars per kg