What was a result of the invention of the cotton gin?
a decrease in the use of slaves in the south
b. an increase in the price of cotton
c. a decrease in cotton production
d. an increase in the use of slaves in the south

Hello,

The correct answer is D.An increase in the use of slaves in the South

The invention of the cotton gin helped removed the seeds from the cotton normaly faster than usual. This later reduced in the fact that slaves were not anymore help after all.

b) a state law could be declared illegal if it contradicted the constitution.

explanation:

the conflict of this case originated when james w. mcculloch, a cashier of the baltimore branch of the second bank of the united states that the congress had chartered in 1816, refused to pay a tax imposed by the maryland state.

in the case, the state of maryland appealed that the establishment of a second bank was unconstitutional since the constitution didn't say anything about granting that power to congress. however, the case determined that even if such right wasn't specifically stated in the constitution, it was part of the "implied powers" of the government enunciated in article i, section 8.

the case also eliminated maryland's legislation to impose taxes to a national bank, asserting that even though the states retained the power of taxation, the constitution's laws are supreme and can not be controlled by the states, therefore, if a state law contradicts the constitution, it should be declared illegal.

explanation:

#2 the answer is d

#3 the answer is a

#4 the answer is b