PLEASE ANSWER ASAPPP Using the following equation, find the center and radius:

x2 − 4x + y2 + 8y = −4

The center is located at (−2, −4), and the radius is 4.
The center is located at (2, −4), and the radius is 4.
The center is located at (−2, −4), and the radius is 16.
The center is located at (2, −4), and the radius is 16.

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  (b)  The center is located at (2, −4), and the radius is 4

Step-by-step explanation:

Completing the squares, we get ...

  (x^2 -4x +4) +(y^2 +8x +16) = -4 +4 +16

  (x -2)^2 +(y +4)^2 = 16 = 4^2

Comparing to ...

  (x -h)^2 +(y -k)^2 = r^2

we find (h, k) = (2, -4) and r = 4.

The center is (2, -4) and the radius is 4.

it will cost dollar $540

the living room is 3 which means if we divide 325/3 then we get $108

therefore if 1part of the living room cost $108 and 3 costed $325

then total 5part of the room will cost 5*108 which gives $540

it would open into a square depending on the type of envelope i’m not sure about the second part