How was the South different from the North in the 1820s–1850s?

What effect did john hay’s open door policy letters have on the imperial powers of britain, france, germany, russia, and japan? a. it provoked the imperial powers to declare war on the united states. b. it caused the imperial powers to restrict trade in their trade with china. c. it warned the imperial powers that the united states would soon declare war on china. d. it signaled to those powers that the united states would take a larger role in world affairs than before.

Interest groups are protected by the first amendment guarantees of petition. and what other freedom?

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