In order to calculate marginal cost, producers must compare the difference in the cost of producing one unit to the cost of
O purchasing a unit.
O distributing that unit.
O producing the next unit.
O producing a different unit.

Can someone read this article and tell me the 1) key ideas and 2) one key quote (copy and paste the link the article is not to long at all)from

What is the term used for the belief that the white race is superior to all other races

50 points in at least two paragraphs, discuss the differences between the principles of republicanism and democracy. explain whether you think the united states is more of a republic or a democracy. refer to at least one example from the constitution.