Answer: look at the picture
Step-by-step explanation: hope this help:)
Answer:
C.0, 500
Step-by-step explanation:
Answer:

Step-by-step explanation:

Hope this helps.
Answer:
∠B = 60°
Step-by-step explanation:
They are supplementary angles, which means they add up to 180°.
∠B + ∠A = 180
? + 120 = 180
? = 180 - 120
? = 60°