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: 141
Explanation: No one answer this.
Immigrates who were farmers i think<span />
Civilization? I don't know the song/poem, so according to what ai have here this is my best guess...
Sorry I can't hell more!