Plz me answer ! how did americans feel about expanding westward?

They were uncertain of it, due to the fact that it was Indian territory and the French controlled Canada

d) the constitution rights of native americans and their right to self-government on reservations

the conditions that made the byzantine empire vulnerable to attacks by the muslin turks were the sack of constantinople by western crusaders, the conquests of the sultanate of rum, presence of rival kingdoms and finally the set up of fiefdoms at the empire which were owned by the ghazis (turkish warriors).