How do monopolies affect the price of goods?

Which of the following was used only once, to ratify the 21st amendment (repealing prohibition)? a.three-fourths of both houses of congress. b.three-fourths of the state legislature approved it. c.two-thirds of the state legislature approved it. d.ratifying conventions in three-fourths of the states approve it.

Who believed that the best economic system was on in which businesses compete to gain profit with minimal or no government control

Which of the following was probably the most difficult challenge facing construction of the railroad?