Please answer the following four questions, thank you so much!!

Problem 2. Suppose now the 200 street vendors form an association and let the leader of the association to decide the price for their hot dog. That is, they act like a monopoly rm with 200 stores. The demand keeps the same, 62" = 2500 100P, and the total cost of one vendor is: 2 + iq + q2. CF 1. Let Q represents the overall quantity that the association leader decides to produce, what is the quantity that each vendor should produce? 2. What is the total cost for producing Q hot dogs? 3. What is the marginal cost when the association produces at Q? 4. What is the equilibrium price