A ___ is a form of city government in which the mayor has a major role in leadership.

Mayor-council form of city government

Explanation:

The mayor-council form of city government is a form of government based on the principle of separation of powers between the executive and legislative arm of government. In this case, the mayor represent the executive head of the city while the city council represents the legislative arm of the government. The two arms of the government are elected by residents of the cities.

This form of city government is widely practiced in America oldest large cities such as New York City and Baltimore.