Final answer:
The Ghana Empire became wealthier from trade due to the control of gold and salt resources, along with the taxes imposed on commodities traded through their territory.
Step-by-step explanation:
Between Ghana, North Africans, and the Wangarians, it was the Ghana Empire that actually became wealthier from the trade. This wealth stemmed from Ghana's position as a central hub in the trans-Saharan trade, especially in gold and salt. Ghana's kings capitalized on this trade by exercising control over gold-producing regions and taxing the commodities that flowed through their territory. This enabled them to amass substantial wealth, akin to their contemporaries in Europe and other parts of the world. The merchants, such as the Wangarans, played a critical role, especially in the gold trade, but their profits were subject to the taxes and controls imposed by the Ghanaian monarchs. North Africans facilitated the trade, especially Muslim traders who connected sub-Saharan Africa to the Mediterranean and beyond, yet the core profits from the resource-rich lands fell to the rulers of Ghana, who were strategically positioned to exploit the regional trade dynamics.