Sailco Corporation needs to determine the optimal production schedule over the next four quarters to minimize costs while meeting demand. The demand for each quarter is given, and Sailco can produce up to 40 boats per quarter at regular time at $400 per boat or additional boats at overtime for $450 per boat. An inventory holding cost of $20 per boat is incurred at the end of each quarter. Linear programming will be used to find the optimal production schedule. A multinational oil supplier produces two types of gasoline and buys three types of refined oil from different sources. The constituents and prices of each oil are given. The gasolines have constituent constraints. The problem is to determine the optimal mixing of refined oils to