Final answer:
The First Congress decided to boycott British goods until taxes imposed by the British Parliament were repealed.
Step-by-step explanation:
The decision of the First Congress mentioned in the question refers to historical measures taken by the American colonists, particularly during the events leading to the American Revolution. One significant decision was to boycott British goods until the taxes imposed by British Parliament were repealed. The colonies saw these taxes, which affected many luxury items and everyday goods, as a violation of their rights since they had no representation in Parliament that imposed such taxes. This led to various non-importation agreements and the formation of groups like the Sons of Liberty and the Daughters of Liberty, who advocated for the boycott of British imports as a form of protest.
An outcome of such disputes was indeed the decision to stop all trade with Great Britain. Actions like these were aimed at exercising economic pressure to repeal unfair taxes such as the Townshend Acts, which placed duties on a variety of essential goods imported into the colonies.
Moreover, the tariffs and trade regulations of the time period spurred a significant debate regarding the authority of Congress to impose such measures, with compromises being made, such as granting Congress the power to tax imports but not exports.