Answer:

Explanation:
Since
is a diameter, arc 
Given that
is a subtended central angle by two diameters,
.
Using the rule of arcs,
→



Looks like you have to attach a picture. It wont work, because all you did was copy it.
Answer:
I might be wrong, but I'll help anyway.
Step-by-step explanation:
The is either 2700 or 640.
Answer:
m = 2/3
Step-by-step explanation:
The slope of the line is 2/3.