Question

what were two practices used to develop monopolies? charging tariffs for crossing state lines and limiting transportation distances controlling all the steps in a business process and driving out all the competitors driving out all business competitors and charging tariffs for crossing state lines controlling all the steps in production and limiting transportation distances

Explanation:

Controlling all steps in a business process (vertical integration) helps a company gain more power and reduce costs, while driving out competitors eliminates rivals to gain market - share dominance. Tariffs for crossing state lines and limiting transportation distances are not typical monopoly - building practices.

Answer:

controlling all the steps in a business process and driving out all the competitors