The main way in which <span>popes and powerful families contributed to the flourishing of Renaissance art was that they funded much of it--since they were the only people who had enough money to pay the artists to create. </span>
May I see the answers you can choose from? This is likely to be a multiple choice question, and I can't help without knowing the full question.
The trade exchanges had several positive affect on the city of Timbuktu. The city started becoming wealthy due to numerous trade exchanges. This wealth attracted many people from outside and made the city of Timbuktu very powerful. I hope that this is the answer that has come to your desired help.