A manufacturer of refrigerators must ship at least 100 refrigerators to its two warehouses. Each warehouse holds a maximum of 100 refrigerators. Warehouse A holds 25
Krefrigerators already, while warehouse B has 20 on hand. It costs $15 to ship a refrigerator to warehouse A and $10 to ship one to warehouse B. How many refrigerators
should be shipped to each warehouse to minimize cost? What is the minimum cost?