In an Less-than-Truckload trucking company, terminal docks include casual workers who are hired temporarily to account for peak loads. At the Omaha, Nebraska, dock, the minimum demand for casual workers during the 7 days of the week (starting on Monday) is 20, 14, 10, 15, 18, 10, and 12 workers. Each worker is contracted to work 5 consecutive days.
Develop the LP model and determine an optimal weekly hiring practice of casual workers for the company using AMPL, Solver, or TORA.