Profit=100Q-5000-0.2Q^2 where q is the quantity of widgets produced What is the price of widgets? What is the total cost function?

Profit=100Q-5000-0.2Q^2where q is the quantity of widgets producedWhat is the price of widgets?What is the total cost function?if output is 200 units what is the variable cost and total cost?what is the profit maximizing level of output for this producer will the producer make a positive or negative profit at this level of output