joanie loves figure skating (payoff of 30) and hates football (payoff of -30). Al loves football (payoff of 30) and hates figure skating (payoff of -30). But both Joanie and Al prefer to go out together (bonus payoff of 30 each in addition to the payoff from the activity they choose). If they go out separately the get no bonus payoff. Complete the payoff matrix for Joanie and Al.