Answer:
55 degrees
Step-by-step explanation:
The sum of the measures of the angles of triangle is 180 degrees.
That allows you to find the value of x.
x + 25 + 30 = 180
x + 55 = 180
x = 125
To find y, use the fact that angles x and y are supplementary. The measures of two supplementary angles add to 180 deg.
y + x = 180
y + 125 = 180
y = 55
Answer: 55 degrees
