Equilibrium price and equilibrium quantity question. Quantity demanded and quantity supply

Question two Given the following two equations: Qd = 150 - 3P Qs = 70 + 2P A- Calculate the equilibrium price and the equilibrium quantity. Show all your work. (4 marks). B- Using the two equations, complete the following table? (4 marks). Price Quantity Quantity Shortage/Surplus/ Value of shortage or demanded Supplied Equilibrium surplus 10 15 20 25 C- Draw a graph to shows the market state when P= 20. Show on this graph the equilibrium price and the equilibrium quantity. (4 marks). D- If the consumer income increases by 20%, show graphically what will happen to the equilibrium price and quantity