C
That’s the answer to your question .
Top triangle: if the know angle measures are 90 and 55 and there are a total of 180, 90 + 55 + a = 180. This means that angle a = 35°
Bottom triangle: if a is 35, the angle connected to it is 35 because they are vertical angles. The angles of this triangle are 35 + 120 + b = 180. Angle b = 25°
Answer:
For the first question(B)
x=-2
x=5
For part C, the question is not clear
For the last question, the approximated value is -5/4
Mathematically, that is 12(8+t). Distribute the 12, and you get 96 + 12t, or 12t + 96.
