America changes through times of and cooperation.

Historically speaking, America changes both through times of "division" and cooperation, since not all change is necessarily good, and sometime division leads to a better way of life, as with the case of the Civil War. 

Answerthe correct answer is cexplanationthe ordered pair of the relation are: the domain is the set of all the x-values for which the function is defined.these are: therefore the correct option is c.

Ifound this on google “the existence of agglomeration economies is central to the explanation of how cities increase in size and population, which places the phenomenon on a larger scale. the concentration of economic activity in cities is one reason for their development and growth.” i hope this you for what your looking for.