probability function

A standard die has its faces painted different colors.  Faces3,4,6 are red, faces 2 and 5 are black and face 1 is white.
a)  Find the probability that when the die is rolled, a black or even numbered face shows uppermost.

a game is played by rolling the die onvce.  If any of the red faces show uppermost, the player wins the dollar amount showing, while id a black faces shows, the player losed twice the amount showing.  If a white face shows, he wins or loses nothing.

b) find the probability function of the palyer's winnings X
c)find the expected amount won.  Would you play this game?