Wealthy landowners were from the West Indies and enslaved Africans.
As I am thinking you mean "Producers" when you say "Sellers" I am going to go with, Yes. You are correct it is Supply.
(Also the other one is called Demand not price)
Answer:
A reason a hippie might have worn a T-shirt with Bob Dylan's picture on it is to show an approval of antiwar music.
Explanation: