This document provides three examples of using linear programming to optimize objectives like minimizing costs or maximizing profits. The first example involves determining the optimal number of artisans and apprentices a furniture factory should employ to minimize wages while delivering at least 90 units per week. The second example involves determining the optimal amounts of two product mixtures a sweet factory should make to maximize daily profit. The third example involves determining the optimal number of passengers a company should transport by bus and minibus each day to maximize daily profit.