Give one example on how congress used iy implied powers in education.

The Congress has the power to make legislations and laws that can affect the system of different schools.

An informal structure in a bureaucracy would be something like so-called "office politics". where there's a formal structure set up for the organization, but then an informal subculture as well that has a way of organizing the bureaucracy further. this can be positive because it sets up an added degree of organization, albeit informal, within the bureaucracy.