Final answer:
The Southeast was the region where slavery was most common, often denoted as the Cotton Belt. Pennsylvania, where Quakers commonly opposed slavery, was part of the Northeast United States. Virginia was the first state to legally recognize slavery.
Step-by-step explanation:
The color matching with each description for the United States history context is as follows:
- Region where slavery was most common: Southeast / Cotton Belt / Black Belt
- Region where slavery was commonly opposed by Quakers: Pennsylvania / Northeast United States
- Region that contained the first state to legally recognize slavery: Virginia
Slavery was most common in the Southeast region of the United States, an area famously known as the Cotton Belt or Black Belt, due to the fertile soil and the high concentration of enslaved African Americans who worked in cotton fields.
Quakers, known for their strong opposition to slavery, were primarily located in the Northeast, particularly in Pennsylvania, which was among the first regions to take steps toward abolishing slavery.
Virginia was significant as it contained the first English colony in North America to legally recognize the institution of slavery and was instrumental in its spread across the southern states.