Develop optimization models for the effective allocation and scheduling of courses last-mile logistics company wants to decide the size of the service area of its delivery service. Suppose that customers are uniformly distributed with a density of customers per km2. Or in other words, suppose that the service area is A km2, there are A number of customers. Suppose that the maximum possible service area is 100 km2. The expected TSP tour length of serving N 2 customers in this area is 0.7AN . Suppse each customer the company collects p in revenue, and the driving cost is q per unit distance. Find the size of the service area that maximizes the company's profit. Note that the answer might depend on certain conditions involving p, q and