Answer:

Step-by-step explanation:
You just replace 'x' for the value given, -10.

Answer:
Supplementary angles
Adjacent angles
Step-by-step explanation:
They add up to a straight line, which is 180 degrees, therefore they are supplementary.
They also share a side and the corner point, hence adjacent.
Answer:
The answer is D
Step-by-step explanation:
Plug all of the numbers in and they all work with the problem.