Answer:
The equation of a circle:

Step-by-step explanation:
The equation of a circle:
(where the center is known as
and the radius, known as
).
-Since you already have the center and the radius, use them for the equation of a circle:
Center: 
Radius: 

After you have the equation of a circle, simplify the radius by the exponent
:

So, you have found the equation of a circle.
Answer:
33y+16
Step-by-step explanation:
Break apart the problem:
-4(-4-7y)=16+28y
5y+16+28y=33y+16 (Add like terms)
It is c because b is an enlarged version of a
Answer:

Step-by-step explanation:

Step-by-step explanation:
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