Answer:
The monopolist company will charge $7 and sell 90 units.
Explanation:
If the city of Springfield regulates the monopolist, it will require the company to charge a price of $7, which is the normal profit price, according to the attached diagram. Ordinarily, the monopolist, if unregulated, may decide to increase the price it charges to $10. At such a price, there is no market equilibrium. But monopolists are better regulated for the market to achieve equilibrium in the market supply and demand of the goods or services.
