there are 100 U. S senators. two-thirds of them vote in favor of a proposed amendment. this means at least how many senators must support it?

66

Explanation: .66666*100

what's 2/3 of 100? there's ur answer

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.