Answer:
one half or 1/2
Step-by-step explanation:
do your rise over your run on the graph.
35 degrees.
Assuming 145 is the exterior angle, the interior is 35. 180-145=35
Add 110 to 35 and get 145 degrees. Which leads the remaining angle 35 degrees
The answer is B I have provided a picture to show the solving steps
Answer: 
Step-by-step explanation:
The centre is (-3,-15), so we can say the equation of circle is
. put (5,-1) at this equation.
then, we can know
.
∴ 