Answer:
Step-by-step explanation:
its a
Answer:

Step-by-step explanation:

Switch sides:

Subtract 5 from both sides:


Answer:
10
Step-by-step explanation:
Add all of the numbers up and divide by the amount of numbers there are. You subtract for the negatives.
Answer:
Answer is B. angle addition postulate
Step-by-step explanation:
-UvU-