economics game theory

Consider the game table below: Column L R T 0,0 -1,1 Row B 1,-1 -4,-4 a. Suppose Column plays L with probability q and R with probability 1-q. Find the expected payoff for Row (a.1) for playing T and (a.2) for playing B. b. Suppose Row plays T with probability p and B with probability 1-p. Find the expected payoff for Column (b.1) for playing L and (b.2) for playing R. c. Find the mixed strategy Nash equilibrium of the game