The answer is the second choice {a | a>4}.
2a+4>12
-4 -4
-------------
2a > 8
---- ----
2 2
a>4
His followers is the answer.
To restrict the african americans. and to convince them to move to north states
In the 1850s they defended slavery in the United States, and promoted its expansion into the West against northern Free Soil opposition.
