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• How do you solve #a^ { 2} + 1= 17#?
  
• A substance is 27 % C and 73 % S. Which is the mass of carbon in 300. g of this substance?
  
• A) Determine the equation of the tangent line to F(x) = (2 - x^2)/(1+x) at (0,2). write your answer in the form Y=mx+b? b) determine the equation of the normal to f(x) at (0,2)?