Answer:
b) ∠ACB = 25 degrees
Step-by-step explanation:
arc BA = 50° because central angle AOB = 50°
∠ACB is inscribed angle of 50°, so it is (1/2)(50) = 25°
Answer: 5
Step-by-step explanation: You have to multiply 1 2/3 and 3.
I hope this helps you out!