Please Help me solve this (3 questions total)

(Table) Based on the table Canada's Production Possibilities Tons of Steel Airplanes 15 0 10 4 5 8 0 12 Mexico's Production Possibilities Tons of Steel Airplanes 6 0 4 2 2 Mexico has a comparative advantage in producing steel. Mexico has an absolute advantage over Canada in producing both steel and airplanes. Mexico has a comparative advantage in producing airplanes. Canada has a comparative advantage in producing airplanes. Question 28 of 60 worker (Table) Based on the table, diminishing returns occur when hiring the Production in the Short Ron Labor Total Product 0 1 5 2 13 3 18 4 22 25 Second first third fourth of 60 If a positive externality exists in a market, the unregulated market produces too little of a product at too low a price Truc False