The United States’ invasion of Florida in 1818 demonstrated that

The United States' invasion of Florida in 1818 demonstrated that the Seminole Indians would leave Florida. ... Spain did not have tight control of Florida.

Explanation:

The United States' invasion of Florida in 1818 demonstrated that the Seminole Indians would leave Florida. the United States had tight control of Florida. Spain did not have tight control of Florida. Great Britain was a strong supporter of Spain.

Explanation:

doesnt look like the your questions is fulled completed but if you meant that and u're doing a multiple choice question the answer should be C i've ran into the question before

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labor leaders and organizations had the power to demand it.

explanation:

workers got a five-day workweek because the bcea protects and respect the rights of the employees. labor leaders and other groups demanded it.