at least give objective function

The cost of building warehouse i is estimated to be fi SEK (land purchase, construction costs, etc.) and the total capacity of warehouse location i is bi units. Each customer j has a demand for dj units. The transport cost cij per unit transported is calculated as the distance between warehouse i and customer j. The administration and handling costs of a warehouse are assumed to vary depending on how many customers served. This cost is ki SEK for each customer that is served by warehouse i. In addition, each warehouse can serve at most K customers. Tasks 1. Formulate and solve an integer programming model that minimizes the cost for building and serving all the customers. a. Where should the company locate its warehouses. b. From which warehouse should the customers be served? c. Are any of the customers served by more than one warehouse? d. Does one or some of the selected warehouses have excess capacity? e. What happens if the demand increases with for example 5%,10%, ? f. What happens if the capacity and the demand increase, check different scenarios