(b) What is the optimk selumen? A=p=peetit= (c) What is the value of the slack variable in the Grade A cruck of corisbrain? Inteipratithis value After reaching the opdmal solution, there ks at ill this bmount of grade A crude oil to be uled After readying the optirtal solution, all walable grade a crude of has becen utes. In order to feach the optimal unfuten, this amount ef arade h crude cil in required. interprot this value. After reaching the optimel solution, there is stil this amount of grade A crude of to be used: After reaching the optimal solution, all availabie grade A crude ail has been used. In arder to reach the optimal solution, this amount of grade A crude oll is required. What is the value of the slack variable in the Production copocity constrain]? Interpret this volue. After reaching the optimal solution, the refinery is still oble to produce this amount of gasoline. After reoching the optimal solutian, the total production capacity is usod. In order to reach the optimal solution, the refinery must produce this amoant of odditionel gasoline. What is the value of the siack variable in the Demand for premium constraint? Interpret this value. After resching the optimal solution, the produced amount of premium gasaline is this much less than the manimum demand. After reaching the optimal solution, the maximum demand for premium gasolline has been reoched. In order to reach the optimal solution, thas amount of additionel premaum qoseline needs to be produced in order to meet demand. (d) What are the binding constraints? (Select all that apply.). grade A crude oil available production capacity profit. demand for premium (b) What is the optimk selumen? A=p=peetit= (c) What is the value of the slack variable in the Grade A cruck of corisbrain? Inteipratithis value After reaching the opdmal solution, there ks at ill this bmount of grade A crude oil to be uled After readying the optirtal solution, all walable grade a crude of has becen utes. In order to feach the optimal unfuten, this amount ef arade h crude cil in required. interprot this value. After reaching the optimel solution, there is stil this amount of grade A crude of to be used: After reaching the optimal solution, all availabie grade A crude ail has been used. In arder to reach the optimal solution, this amount of grade A crude oll is required. What is the value of the slack variable in the Production copocity constrain]? Interpret this volue. After reaching the optimal solution, the refinery is still oble to produce this amount of gasoline. After reoching the optimal solutian, the total production capacity is usod. In order to reach the optimal solution, the refinery must produce this amoant of odditionel gasoline. What is the value of the siack variable in the Demand for premium constraint? Interpret this value. After resching the optimal solution, the produced amount of premium gasaline is this much less than the manimum demand. After reaching the optimal solution, the maximum demand for premium gasolline has been reoched. In order to reach the optimal solution, thas amount of additionel premaum qoseline needs to be produced in order to meet demand. (d) What are the binding constraints? (Select all that apply.). grade A crude oil available production capacity profit. demand for premium