How much did the united states pay for the louisiana territory? (the exact amount)

The total amount paid for the Louisiana Territory by the United States was 15 million dollars

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.