Which statement best expresses the central idea of the text? Experts learned about dentistry in ancient Rome by finding teeth in a drain and studying them Dentistry has not changed much since the ancient Romans, as people still get cavities The ancient ROmans didn't know how to properly pull and dispose of teeth The ancient ROmans pulled teeth rather than fix them because it was faster and cheaper.

the tariff was created to protect industry in the northern part of the united states. industries in the north were being driven out of business by imported goods that were priced at a low rate. the goal was to protect these industries   by taxing the goods.

b - those executed came from every social and economic class

it was certainly a debatable decision, mainly because it was based primarily on political - and not on legal or social - views. since the congress at that time was led by members of the republican party, and the territory that the tribes wanted to turn into an exclusively indian state was predominantly democratic, the proposal (as expressed in the constitution) did not succeed, but the constitution itself proved to be of crucial importance in the creation of the state of oklahoma, and, most importantly, it guaranteed the involvement of representatives of the indian tribes in the government of the future joint state.  

as a member of congress, i would have voted to ratify the constitution, or at least to have it tabled. ignoring it was an interested and partial decision.