Solve it plzzzzzzz

B) Quantity competition: 1. Suppose we have 3 identical firms with a constant and linear marginal cost of 5 facing a demand of p(q)=300-Q. Compute the reaction functions, equilibrium production, and profits. 2. Suppose that one of the firms from 1) has the option of either competing with the two identical firms or a more efficient firm with a marginal cost of 1, which does it prefer? 3. Compute the welfare from 1 and 2