Can you please check my answer to this question?

Suppose that, in the market for apples, domestic demand is given by P = 30 - 0.5Q, and domestic supply is given by P = 1.5Q, where Q represents tonnes of apples. Further suppose that the world price of apples is $6 per tonne.

A.On a graph, illustrate the market equilibrium if the market is open to international trade. Calculate the gains from trade in this market and label the corresponding area on the graph.

361 30 24 A 12 A B 6 Demand 2/0 30 48 5/0 ep Imports