During the Middle Ages, for what were the Jews blamed? A.
the weather

B.
the Black Death or bubonic plague

C.
losses during the Crusades

D.
financial struggles

Profits are maximized when marginal revenue and marginal costs are a. set c. equal b. less than market price d. greater than market price

Which best describes the impact of the crusades on european exploration?

1. america's first national road morse 2. joined lake erie with the hudson river cooper 3. steam-driven locomotive erie canal 4. allowed businesspeople to keep in touch with trends cumberland 5. telegraph code fulton 6. clermont telegraph