Read the text and answer the question.   Text: Here's some data about a warehouse. You need to calculate its capacity.   Warehouse dimensions: 200 ft x 400 ft Space that cannot be used to store inventory (office, bathroom, loading docks, staff break rooms, etc.): 15,000 sq. ft Usable height (clearance height, considering space for overhead fixtures, lights, etc.): 25 ft   Question: What is the capacity of this warehouse?