Answer:

Explanation:
Hello There!
Knowing that the sum of the angles in a triangle is 180
we can use this equation to solve for x
180 = 90 + 5x + 2 + 6x
Step 1 combine like terms
90 + 2 = 92
5x + 6x = 11x
now we have
180 = 11x + 92
step 2 subtract 92 from each side
180 - 92 = 88
92 - 92 cancels out
now we have
88 = 11x
step 3 divide each side by 11
11x/11 = x
88/11 = 8
we're left with x = 8
Now we plug in 8 into x for 5x + 2 so we can solve for y
5*8=40
40+2 = 42
Now we can solve for y
the angle measured 42 degrees and the angle labeled y are supplementary angles meaning that the sum of the two angles is 180
so to find y we subtract the given angle (42) from 180
180 - 42 =138 so we can conclude that y = 138
Notes: the little square represents a right angle which has a measure 90 degrees so thats where the 90 came from .