Please provide answer with explanation because I don't only want the answer but also learn how to do it

20. The demand for oranges in Canada is given by D = 100- 10p and supply by domestic producers is S = 20p - 20. The world price is 2 dollars per orange. a. Provide a labelled Supply and Demand diagram showing the volume of imports in the market for oranges at a world price of 2 dollars. b . Next month the government will introduce a tariff of 1 dollar in this market. Use the same diagram to show how this policy will affect the volume of imports, consumer surplus, producer surplus and government surplus. C . Shade in the Efficiency Loss in from this policy