1. president james k. polk fulfilled a significant campaign promise during his presidency. what was it?
a. reducing the number of slave states
b. achieving peace with mexico
c. divine right

2."which area did the united states aqure in the 1840s, and how did it acquire the land?
a. the united states purchased hawaii from france.
b. the united states took the louisiana territory from native americans
c. mexico ceded california to the united states as part of a peace treaty.

3. "which describes michigan, minnesota, iowa, and oregan during the civil war? "
a. confederate states
b. union states
c. organized territories

4. what was one of the failures of the reconstruction era?
a. african americans had no due process protections.
b. african americans in the south were denied public education for their children
c. political opportunities for african americans disappeared after a short time.