Final answer:
The American System aimed to unite the nation's economic interests through policies like protective tariffs, internal improvements, and the establishment of a national bank.
Step-by-step explanation:
The American System was expected to unite the nation's economic interests by implementing policies and initiatives that would foster economic growth and promote national unity. One example is the establishment of a protective tariff, which would encourage the development of American industries by making imported goods more expensive and therefore less competitive. Another example is the implementation of internal improvements, such as the construction of canals and roads, to facilitate trade between different regions of the country. Lastly, the American System called for the creation of a national bank to provide a stable financial system and promote economic stability.
Learn more about The American System and its role in uniting the nation's economic interests