Name a prominent African empire (that once controlled Senegambia and West Africa) from the 13th to 16th centuries.

One of them I chose was the Ghana Empire, which was from the 7-13th centuries. Does that count?

No. The time frame is wrong.

Then besides the Mali Empire and the Songhai Empire, what else prominent African empire would there be? I couldn't find another one.

https://en.wikipedia.org/wiki/List_of_kingdoms_in_pre-colonial_Africa#West_Africa

No, the Ghana Empire does not match the description you provided. The Ghana Empire existed from the 4th to the 13th centuries, but it did not extend as far as Senegambia and West Africa.

The prominent African empire that once controlled Senegambia and West Africa from the 13th to 16th centuries is the Mali Empire.

To find this answer, you could have used several resources. One option is to consult historical textbooks or non-fiction books about African history. Another option is to search on reputable websites, such as educational or historical websites, that provide information on African empires. By using these resources, you can gather accurate and reliable information about various African empires, including the one that matches the given description.