How is a city legally defined in the u. s ?

according to united states, a city is an urban unit with clear boundaries and a degree of Autonomy. Even though it may not be something that would affect many people, a city is allowed (to some extent) to create their own regulation regarding how the city should be run

Divide each number then subtract

The townshend duties were repealed, except for the tax on textiles, tea, or glass?