C. -2° :) hope this helps lmk!
Answer:
D is the answer
Step-by-step explanation:
1. 90°
2. 5.74
3. 90°
4. 7
:))

The given triangles are congruent by :
because they have Two Angles and a side between them equal to the corresponding Angles and side of the another triangle.
Difference of a number and 17: x - 17
eight times that = 8(x - 17)
8(x - 17) = 30
divide both sides by 8
x - 17 = 30/8
x = 30/8 + 17 which is 20.75