The ancient Muslim historian Al-Omari described Mansa Musa as "the most powerful, the richest, the most fortunate, the most feared by his enemies and the most able to do good for those around him" in all of West Africa How did Mansa Musa gain his fortune?

A) by forcing his subjects to convert to Islam
B) by resisting conquest by the Portuguese
C) by controlling the gold and salt trade
D) by conquering the city of Timbuktu

The answer is C.

Explanation:

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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.

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