Answer:
135°
Step-by-step explanation:
seg AB=seg OB
tan ∠AOB = 1
∠AOB = 45°
∠AOC = 135°
Answer: 
Step-by-step explanation:
1) Add () to the equation: 
2) Multiply: 
3) Divide: 
4) Subtract: 
5) Add: 
Answer:

Step-by-step explanation:

The answer is<em> 3) An equation with infinite solutions.</em>