Question 4 (30 marks) A person's demand and supply equations for rice per month are as following: Demand: Q = 40 5*P Supply : Q= -20 + 10*P a. What are the market equilibrium price ($/kg) and quantity (kgs/month) for rice? (5 marks) b. At the market equilibrium price, what are the consumer surplus and producer surplus? (10 marks) c. If the rice price rises to $6/kg, what are the consumer surplus and producer surplus? (10 marks) what is the impact of this rice price increase on the consumers and producers as a whole