The war officially ended with the february 2, 1848, signing in mexico of the treaty of guadalupe hidalgo. the treaty added an additional 525,000 square miles to united states territory, including the land that makes up all or parts of present-day arizona, california, colorado, nevada, new mexico, utah and wyoming.

Is it a question or a claim?

Explanation:

If the question is to say True or False the answer is True.

- three-quarters or two-thirds..

- "the constitution provides that an amendment may be proposed either by the congress with a two-thirds majority vote in both the house of representatives and the senate or by a constitutional convention called for by two-thirds of the state legislatures."

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