PLATO/Edmentum Answer: 
17 & -16
Step-by-step explanation:
A circle is centered at the point (-7, -1) and passes though the point (8, 7). 
The radius of the circle is 17 units. The point (-15, -16) lies on this circle
 
        
             
        
        
        
Answer:
 You subtract the final temperature from the starting temperature to find the difference. So if something starts at 50 degrees Celsius and finishes at 75 degrees C, then the change in temperature is 75 degrees C – 50 degrees C = 25 degrees C. For decreases in temperature, the result is negative.
Step-by-step explanation: really not sure how to explain but in my understood   thats my answer
 
        
             
        
        
        
Answer:
I'm good yet tired lol how are you!
 
        
                    
             
        
        
        
Step-by-step explanation:
x=5,y=-1
6(5)-3(-1)=30+3=33
answer G .33
 
        
             
        
        
        
Step-by-step explanation:
the formula to calculate a circumference is 

(consider x as the diameter)
so I'll be noting the circumference as C alongside the circle's ranking
a.

b.

c.

hope I helped