please help me on this question

3. The gure given below shows the U.5. market for imported wine. For simplicity, we consider export supply curves to be flat. Chilean wine is available for $480 per barrel and French wine is available for 5420 per barrel. Price per barrel $50 $430 Chilean price 5420 French price US demand for imported wine 0 10 15 22 Quantity (millions of barrels per year) a. Under free trade, how many barrels ofwine will the United States import and who will they import from? b. Suppose that the United States imposes a tariff of 580 per barrel on imported wine. How many barrels of wine will the United States import and who will they import from? 1:. Suppose the U.5. joins a free trade area with Chile. i. Calculate the gain arising from an increase in net volume of trade after the U.5. joins the free trade area (trade creation). ii. Calculate the loss suffered by the U.S. arising from the shift of trade from lowcost exporters to highercost blocpartner exporter (trade diversion). iii. What is the net effect on the U.5. wellbeing of joining the trade bloc