Qd = 100 5P, Qs = 20 + 3P Calculate* and graph equilibrium Qd = 100 5P, Qs = 20 + 3PCalculate* and graph equilibrium points( price and qty)(*hint; find point placement from D and S functions on graph )B. Calculate and graph consumer surplusC. If Qd= 80- 5p, explain what would lead to the change in the function.D. Given the changes in demand curve, explain the changes in the market. Business Economics Environmental EconomicsECON 13