QUESTION 3 Suppose that we use x1 to denote the number of cups to produce and x2 to denote the number of mugs to produce. If we want to make sure that the number of cups cannot exceed 50% of my combined production, which of the following is the correct constraint? [Hint: First write down the constraint-based on the statement. Then, rearrange all decision variables to the left of the equation.] X1 S 0.5 X1 -0.5x2 so X1 - X2 50 None of the above