Answer:
yes!
Step-by-step explanation: im pretty sure it is
The unit of measurement is not specified, so for the sake of this problem, we'll assume it's radians (If you need it in degrees, I'll be happy to edit).
Find the compliment of 0.25:
Complementary angles add up to 90 degrees. In radians, this would be π/2. If you're unsure how I got this, check degrees to radian conversions.
The compliment of 0.25 would be

(1/4=0.25)


(This is the simplified form in case you're homework needs it in this form)
That's the compliment. In decimal (rounded to the nearest hundredth), this would be 1.32 radians.
Find the supplement of 7π/8:
Supplementary angles add up to 180 degrees. In radians, this would be π.
The supplement would be the following:


Thus, the supplement is π/8 radians. If any of this struck you as confusing, comment and I'd be happy to clarify.
The angle of X would equal 104 degrees. The reason behind that would be because it is a vertical angle, meaning it equals the same amount vertical to itself.
To get angle Y, you would need to add 104 and 56 together (160) to find the last angle. Knowing that all triangles equal 180 degrees, you subtract 160 from 180, resulting in 20 degrees. The angle of Y equals 20 degrees.
X = 104 degrees
Y = 20 degrees
5x=30
5x/5=30/5
x=6
5x=30 divide each side by 5 5x/5=x = 30/5= 6 meaning x=6