The general form of a circle is given as x^2+y^2+4x-10y-7=0.

What are the coordinates of the center of the circle?
What is the length of the radius of the circle?

answer: the answer is   graph (a)

i don't think there is enough

a.for lorena 14 hours makes $126   for 16 hours she makes 144

for julie 6 hours makes $72 for 21 hours its $252

b. julie makes more money than lorena julie makes $12 an hour and lorena makes $9  

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