4. Using the numbers from the tables above, suppose the United States settles on producing 18 tons of beef and 12 tons of vegetables before any kind of trade and specialization. Mexico settles on 8 tons of beef and 4 tons of vegetables before and kind of trade and specialization. However, after trade negotiations, the United States decides to only produce beef and Mexico decides to only produce vegetables, which means the United States will produce 30 tons of beef and Mexico will produce 20 tons of vegetables. What will the outputs available be after trade if the United States exports 10 of the 30 tons of beef to Mexico and Mexico exports 15 of the 20 tons of vegetables to the United States? Do both countries gain from specialization and trade? Beef 30 22 18 12 0 Beef 14 11 8 3 0 United States Mexico Vegetables 0 8 12 21 24 Vegetables 0 1 4 11 20