formulation is as follows: Two model's of a product - Regular (X) and Deluxe (Y) - are produced by a company. A linear programming model is used to determine the production schedule. The Maximize profit= 50X +60 Y Subject to 8X + 10Y s 800 (labor hours) X + Y s 120 (total units demanded) 4X + 5Y s 500 (raw materials) all variables 0 The optimal solution was obtained to be X = 100, Y = 0. What would be the slack for the constraint total units demanded based on this solution? O 20 100 120 none of the above ck Save and Submit to save and submit. Click Save All Answers to save all answers