Type the correct answer in each box.
In a game at an amusement park, a player can win 20 points, 25 points, or 30 points. The probability of winning these points is given in the table
Points Probability
20
25
0.6
x
30
y
If Jenny expects to win 22.5 points by playing the game once, the value of x is _
and the value of y is_