Remarks & Instructions: 1. Do not scale any coefficient or function. All coefficients must be integer values. 2. Right-hand side of each constraint should be a nonnegative integer value. 3. Do not put any spaces, extra characters or explanations since these may render your answer incorrect. 4. An empty box is considered incorrect and receives zero point. Suppose that x; is 1 if resource i does taskjand zero otherwise. Fill the boxes appropriately to model the following constraint: Resource 1 should be assigned to at least three of the tasks 1,2,3,4. x11 + X12+ *13+ x14