Use the simplex method to solve the linear programming problem: Maximize z = 5x1 3x2 subject to: 2x1 4x2 < 13 2x2 < 6 with x1 2 0, x2 2 0 A Maximum is 32.5 when x1 = 6.5, x2 = 0 Maximum is 30 when x1 Maximum is 18 when x1 x2 = x276 Maximum is when x1 0, x2 = 3