Answer:
The answer is D, the Columbian Exchange. I hope this helps!
1st one: x = 3
2nd: y = 10
Answer:
The right answer is D.
Explanation:
The lure of getting free land or inexpensive lands plus government policies to encourage settlement and colonization, provided a powerful stimulus to migration to the West along the 19th century in the United States, both before and after the Mexican-American War of 1846-1848.
