If $n ( A ) = 40$ $n ( B ) = 21$

question 78

Short Answer

If $n ( A ) = 40$ , $n ( B ) = 21$ , and $n ( A \cap B ) = 3$ , find $n ( A \cup B )$ .
​ $n ( A \cup B ) =$ __________

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Definitions:

Federal Financing

The process by which the federal government provides funds to support various programs, projects, and initiatives.

Internal Improvements

Internal improvements refer to public works and infrastructure projects, such as roads, canals, and railroads, financed and constructed by the government to facilitate commerce and communication within a country.

American System

An economic plan advocated by Henry Clay in the early 19th century, emphasizing support for a national bank, high tariffs, and internal improvements to foster national economic growth.

Panic of 1819

The first major financial crisis in the United States, which occurred due to a sudden collapse of the economy, leading to bank failures and unemployment.