If 100 units of product l are sold at a unit price of $10 and only 25 units are sold
at a unit price of $20, one can conclude that demand for l is
a) elastic
b)unit elastic

its d i know cause i've been googling it

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.