Final answer:
The Mali Empire's warehouses do not have a recorded number of apartments for merchants; however, as a central hub of trade, significant storage facilities would have been necessary.
Step-by-step explanation:
The Mali Empire did not have a specified number of apartments in warehouses for storing goods for merchants. The historical records from that era do not provide exact figures for the infrastructure used for commerce and storage within Mali. However, the Mali Empire was deeply involved in trade, with cities such as Timbuktu, Gao, and Djenné playing significant roles as trade centers. Wealth from trade especially gold and salt made the empire one of the most powerful of its time, with trade routes serving as lifelines for this wealth.
Merchants in the Mali Empire benefited from the extensive trade network and the empire's control over valuable resources such as gold, mined from the Bure goldfields, and salt from the Sahara. Notably, trade involved gold which constituted a significant portion of the world's gold at the time, as well as salt, ivory, copper, and slaves. Thus, while we do not have explicit numbers, the architectural and economic necessities of the empire suggest that accommodation for merchants and storage for goods would be substantial.