I guess one vote decrease
Answer: The U.S gained the area of Colorado, Utah, Nevada, California, Arizona, and New Mexico.
Explanation:
The Treaty of Guadalupe Hidalgo granted the U.S these lands after Mexico failed to win the Mexican-American War.
This is correct except switch 3 and 4 around. Hope this helps you!
B. it was in 1848, so that's before the civil war.
Answer:
They ended up writing the US constitution(D).
Explanation: