Step-by-step explanation:
Angle formed at the circumference of the circle is half of the angle formed at the center of the same circle.
Hence,

Answer:
-4y-2
Step-by-step explanation:
-4(y+1)+2
-4 times y is -4y
-4 times 1 is -4
-4y-4 plus 2
is 4y-2
Answer:
The choice two;

Step-by-step explanation:

Answer:
B
Step-by-step explanation:
6+7+8
6+8+7
7+6+8
7+8+6
8+7+6
8+6+7