Fairs were an important part of a . a.
domestic economy
c.
barter economy
b.
market economy

answer; (c) slaves brought to the americans from africa;

andrew jackson summary: andrew jackson was the seventh president of the united states. 1767, to elizabeth jackson three weeks after the death of his father, andrew. throughout the 1790s, jackson lay the foundation for the state of washington elite and jackson's own cabinet members socially ostracized

explanation:

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to replace ineffective because   andrew jackson's spoil system was a deliberate policy after he became president to remove federal employees he considered to be political opponents and replace them with his own supporters.