Final answer:
According to al-Bakri, the Ghana Empire in West Africa was wealthy and had a large Muslim population. Islam spread through trade and coexisted with traditional African religions.
Step-by-step explanation:
According to al-Bakri, an eleventh-century Spanish Muslim geographer, Ghana Empire in West Africa was wealthy and prosperous, largely due to its goldmines. The capital city of the empire, Koumbi Saleh, had two towns - one inhabited by Muslims and the other by the king and his court.
The king and his court practiced animist religion, but there was a large Muslim population in the empire. Islam spread in West Africa primarily through trade and commerce, and it coexisted with traditional African religious beliefs.