Have most changes to our government gone through the formal amendment process or through the more informal channels ?

Which of the following led to a continuation of the treatment in the excerpt above? a)the brutality of the trans-atlantic african slave trade. b)spanish repression after violent native uprisings in new spain during the 16th century. c)european competition to quickly establish colonial holdings in the new world. d)the reliance of the spanish on native americans to provide labor under the encomienda system.

31/3: which equation has the solutions x =?

How did the environments in north america affect the development of america indian cultures in the period just before europeans arrived