HELLO, have some questions regarding microeconomic that I need tutoring help with. THANK YOU :)

Does the monopolist have to lower its price if it wants to sell more products, or can it sell any amount at any price it decides?

What happens to the marginal cost as the monopolist produces more output?

How doesthe unregulated monopolistdecide how many units to produce in order tomaximize profits?

Give examples of barriers of entry.

Compared to perfect competition, does the monopolist over-produce or under-produce?