Answer:
center = (2, -4)
radius = 4
Step-by-step explanation:



Equation of a circle: 
(where (h, k) is the center and r is the radius)
Therefore,
- center = (2, -4)
- radius = √16 = 4
Answer:
a
Step-by-step explanation:
I dunno how to explain but A is the answer
The answer would be C since the formula for volume is lwh or bh. With this info, you know that the bases are congruent which means they are the same, as well with the height. So you just multiply the height by the base and they should be the same.
It's a little hard to tell without more information as to what you are learning, but could it be the Golden Ratio? I believe it might have been discovered in ancient Greece...
The correct
answer is-164