I think it’s the second one sorry if I’m wrong ahhh
y = 115
x = 78
The angles in each line have to add up to 180. In this case, it doesn't show the other side of the angle, but you could probably think of it.
Angle = 68⁰ is an inscribed angles, this angle equal 68⁰,
so it intersect arc = 2*68⁰= 136⁰.
Arc of the whole circle (circumference) =360⁰,and it also =b+104+136.
b+104+136 =360
b=360-(104+136) = 120⁰
Answer A. b=120⁰.
1.2 or 1 1/5
3/5 is 0.6 in fraction form! I added 0.6 + 0.6 which equals 1.2
if the answer is needed to be in fraction form, the answer is 1 1/5. have a great day! :-)