For the linear program below, the solution output from Excel is provided: max2x12x2+3x3s.t.:x1+x2+x342x1x2+x32x1+x2+3x312x1,x2,x30 Use the solution report to answer the following questions: a) What are the values of the decision variables at the optimal solution? b) Is the solution unique? Explain your answer. c) What is the optimal solution of the dual problem? d) Suppose that the coefficient of variable x1 in the objective function in increased by 0.5 and th coefficient of x2 is increased by 1 . Apply the 100% rule to examine if these two simultaneou changes will affect the optimal solution