If your building catches on fire, the firefighters will come to put it out. This is a service provided by the government, but in the past, firefighting services were provided in competitive markets. If you didn't pay your fire department beforehand, they wouldn't come to put out your fire, and your house would burn to the ground. Imagine we are in a time where firefighting is provided in a competitive market. Demand for services is P = 40 - 2Qd Supply of services is P = 7+ Qs What is the equilibrium quantity of firefighting services?