Which of these power is considered an implied power?

raising taxes

regulating trade

creating a national bank

declaring war

Creating a national bank would be considered an implied power because the power to do so is not specifically stated in the Constitution as the other powers are.

Explanation:

The Bank's existence may be a nice example of implied powers: the Constitution does not say that Congress has the proper to ascertain a bank, however, its defenders asserted that one was necessary to hold out the Congress' power to gather taxes.

Creating a national bank would be considered an implied power because the power to do so is not specifically stated in the Constitution like the other powers are.