Please help to answer the questions as below, thank you.

Question 5 (20 marks) a , At the start of 2018, Mr. Chan withdrew $500,000 from his saving account to start his cafe. Below is the information for his cafe in 2018. Revenue $2,000,000 Raw materials 500,000 Labour 300,000 Utility 100,000 Rent 700,000 Depreciation estimated by an accountant 0 If Mr. Chan did not Operate his own cafe, he can work as a high school teacher and would receive an annual salary of $360,000. The interest rate on saving deposits in 2018 was 1%. At the start of 2018, the market value of the assets in Mr. Chan's caf was $200,000 and it remained at $200,000 at the end of the year. What was the accounting profit and economic profit of Mr. Chan's caf in 2018? Please show your calculations. (10 marks) b. The United States is a major market for Solar panels produced in China. Suppose that the United States raises the tariff on Solar panels imported from China. Briey explain how this new tariff might affect the equilibrium price and quantity of Solar panels produced in China. Please illustrate your answer with a demand-supply diagram. (10 marks)