Unions suffered a substantial in membership and influence during the 1920s.

Decline

Explanation:

The 1920s witnessed a substantial decline in union membership and a weakening of the labor movement. As the economy of the country improved, and leadership disappeared, labor unions became targets of anti-union sentiments from both employers and the government. However, the prosperity did not last long and the unions became important again during the 1930s.

the option which was not a function of missionaries in the northwest was the first one - they established posts for trading furs and other goods.

missionaries were sent around the world to spread religion and their knowledge and others - they were not merchants who sold furs and other goods.

sorry ill come back