Guysss solo help me plz

Who led the continental army in the final decisive battle of the revolutionary war at yorktown

Why might the greeck city states have an advantage over the persians

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.