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What two consecutive odd integers have a sum of -28

The price of a particular stock is represented by the linear equation , where x represents the number of weeks the stock has been owned and y represents the price of the stock, in dollars. if this relationship continues, what is the price of the stock after it has been owned for 12 weeks? $92.55 $94.37 $100.52 $114.39

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?