please answer all multiple choices and explain

Question 17 (2 points) In autarky, the price and quantity traded are both 16. If the world price is 20, what is the change in producer surplus when opening to free trade? -80 Price D -60 -40 20- World Price S Quantity 5 10 15 20 25 Decrease by 72 Increase by 10 Increase by 72 Decrease by 10Question 19 {1 point} The world price of gold is $1300 USD per ounce, and each year, Turkey imports 6.4 million ounces of gold under free trade. Politician T wants to fund public sanitation, and proposes a $200 USD per ounce tariff on gold imports, which will reduce Turkish imports of gold by 2.4 million ounces. Politician Q proposes a gold import quota of 4 million ounces. Politician A proposes Turkey revert to autarky. Which policy do Turkey's consumers of gold prefer? O Quota 0 Not enough information Question 2O (1 point} x! Saved There are two countries, Diyu and Hawaiki, and each country can produce only two products. Looking at the data below, which of the following statements are true for Hawaiki? Production per hour of Diyu Hawaiki labour Pears 6 kg 2 kg Apple 8 kg 6 kg C] The opportunity cost of producing 1 kg of apples is 3.14 kg of pears The opportunity cost of producing 1 kg of apples is 1.13 kg of pears [:J The opportunity cost of producing 1 kg of pears is 41"3 kg of apples The opportunity cost of producing 1 kg of pears is 3 kg of apples