Im an having difficulty setting up the question; any help would be appreciated

Firm 2 Expand (small) Expand (large) Do not expand 125, 365 50, 300 Firm 1 Expand 250, 250 25, 150 *Payoff format: {Payoff Firm 1, Payoff Firm 2} 1. Find all best responses for both firms and the Nash Equilibrium in pure strategies of the simultaneous-move game. What are the equilibrium payoffs? [Note: Feel free to draw directly into the game matrix above.] 2. Consider the sequential-move game, where Firm 2 moves first and Firm 1 follows. Draw the game tree and find the equilibrium of the sequential-move game. What are the equilibrium payoffs