Answer:
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Step-by-step explanation:
x²+y²-2x-6y-5=0
x²-2x+y²-6y=5
x²-2x+1+y²-6y+9=5+1+9
(x-1)²+(y-3)²=15
(x-1)²+(y-3)²=(V15)²
-> centre of the circle: C(-1,-3)
-> radius of the circle: V15
The simplification of the given expression
will be equal to 
<h3>What is simplification?</h3>
The process of reducing the complex mathematical expressions into the simplest form is called as the simplification.
The simplification of the given expression will be:

hence the simplification of the given expression
will be equal to 
To know more about Simplification follow
brainly.com/question/723406
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Answer:
Step-by-step explanation:
14 is 46.67% of thirty so you’d need to find out what 46.67% of 45 is which would be 21
Hope this is right and it helped XD
Answer:
D
Step-by-step explanation:
The true answer is 12 divided by four bu the closest I can see is the last one