An increase in the market demand for gasoline, all else equal, could be caused by

The correct answer is: "A decrease in the price of gasoline".

The demand function represents the quantity of a certain good or service that consumers are willing to purchase in the market at different price levels. The law of demand states that there is an inverse relationship between price and quantity supplied (ceteris paribus, hence, given that the rest remains equal).Therefore, when the price charged decreases, the amount that consumers are willing to buy increases.

all cities have a governor

all cities are in states or provnies then country

all cities have people

difference

some are rich

some are poor

some are average

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.