Did america make a right decision turning down the opportunity to provide assistance to the people of france?

It depends on what you mean by right. Both yes and no could be a correct answer. Depending on what incident you are speaking of, I would probably say yes.

“America has no permanent friends or enemies, only interests”  

― Henry Kissinger

answer; i believe the correct answer is (the willamete valley);

in mcculloch v. maryland (1819) the supreme court ruled that congress had implied powers under the necessary and proper clause of article i, section 8 of the constitution to create the second bank of the united states and that the state of maryland lacked the power to tax the bank.

gibbons v. ogden, (1824), was a landmark decision in which the supreme court of the united states held that the power to regulate interstate commerce, granted to congress by the commerce clause of the united states constitution, encompassed the power to regulate navigation.