How did the Missouri
Compromise affect Massachusetts?

Missouri Compromise admitted the zone of Maine, the northern locale of what was then Massachusetts, into the Union as a Free State.

This was done to adjust the quantity of "slave states" and "free states." This happened because of a compromise about slavery in Missouri, and in the federal regions of the American west.

Explanation:

To balance the number of slave states and free states, the northern region of Massachusetts, the District of Maine, ultimately gained admission into the United States as a free state to become the separate state of Maine.

pennsylvania, new hampshire, massachusetts, connecticut and rhode island .

the answer is they believed george iii would never give them their freedom.