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Answer and Explanation:
Equilibrium price refers to the price in the market at which quantity demanded equal to quantity supplied. The price is indicated by the price level where the demand and supply curve intersect. We see that the price in our graph is $40 where demand and supply intersect
Equilibrium quantity is the quantity in the market where the quantity demanded is equal to quantity supplied. This is indicated by the quantity that meets the intersection in the graph. Our equilibrium quantity is therefore 80000 barrels