Pls help I will give the brain

6. how did trade with the venetians contribute to the fall of the byzantine empire?

(10 points! ) why did the other allies like great britain and france not support president wilsons 14 points?

Why were presidents andrew jackson and martin van buren unwilling to annex texas? a. they did not want texas to be admitted to the union as a slave state. b. they feared that the annexation of texas as a slave state would lead to political problems within the union. c. they thought that texas was too large to be admitted to the union as one state. d. they did not believe in the idea of manifest destiny.