Which of these changes is not an example of how the Five Tribes’ economies changed as the tribes assimilated?

As the Five Tribes assimilated, many adopted new economic practices, including raising livestock, operating plantations, using U.S. currency in stores and trading posts, and producing cloth through weaving and spinning. Bartering was already a common way to trade and was not a new change associated with assimilation. Therefore, the choice that is not an example of a change is “Tribes began to use bartering to trade with others.”

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