can you please help me with these questions? thank you

Question 2 (4 marks) Suppose the demand curve for pizza can be represented by equation Q-20-2P, where Of is the quantity demanded and P is the price. The supply curve for pizza can be represented by the equation Q' P-1, where Q" is the quantity supplied. a) What are the equilibrium price and quantity in the pizza market? (2 marks) b) Suppose the government impose a $3 tax per pizza. How much more will consumers now pay for pizza? (Hint: the prices in the demand and supply equations are no longer equal. The price that determines quantity demanded now equals the price that determines quantity supplied plus $3). (2 marks) Question 3 (4 marks) a) Figure above shows the demand and supply curves in the market for milk. Currently the market is in equilibrium. If the government imposes a $2 per gallon tax to be collected from sellers, estimate the change in p. Q. and social welfare. (2 marks) b) If the government establishes a $2 per gallon price ceiling to ensure that children are nourished, estimate the change in p, Q. and social welfare (2 marks)