Which of the following new technologies helped the U. S. defeat German U-boats? A. sonar and radar
B. jet-fueled boats
C. tanks
D. metal airplanes​

The system of checks and balances was designed for what purpose? fear of strong state power to keep power out of one branch to appease the southern states to allow the judicial branch to have equal power

What was the main point of helen hunt jackson's book, century of dishonor? a. it showed how unfairly american settlers were treated by the us government. b. it proved that american government was not responsive to the will of the people. c. it made the point that free land was no longer available to new settlers out west. d. it outlined the poor treatment of the native americans by the government.

What were two theories put forth by marx?