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:
America has more opportunities.
Explanation:
America has a larger and wealthier economy,causing people to immigrate there for a higher chance of getting a good pay.
Answer:
what do you mean by document? The colonist Boycott over the Stamp Act (aka taxation without representation) Oh, I read it wrong in the answer is Stamp Act, lol.
if you want a explanation lmk in comments
hope this helps!
I'm pretty sure this is wrong but my best guess would be John smith. You know, that guy from Pocahontas.