What were the main transportation hubs of African civilizations?

In an industry in which there are several providers of a type of good, why can one business not charge much higher prices for their goods?

Plz which of the following statements about life in europe during the middle ages is not accurate. a. by the middle ages the only unifying factor in europe was christianity. b. most people lived in rural areas and worked on farms. c. priest, monks and church officials were virtually the only people in europe who could read and write d. most people lived in cities or towns and worked as skilled artis most people lived in cities or towns and worked as skilled artisans.

How did the g.i bill affect colleges? a. it increased demand for teachers b. it increased demand for support workers on campuses. c. it increased demand for construction on campuses d. all of the above