I do know that the expected value is found by this equation:

e = SPT

Which says that the expected value equals the payoff matrix P times the mixed strategies S and T, where S is a row matrix, representing the row player and T is a column matrix, representing the column player.

The expected value of the game is the average payoff per round if each player uses the associated mixed strategies for a large number of rounds.

Someone else is going to have to help you out with the Optimal Strategies, I do know that a fair game has a value of 0, the rest are unfair or biased.