Answers edited by Fabio

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• How do you evaluate #\frac{ 7}{ 13} + \frac{ 1}{ 7}#?
  
• How do you solve #3- 2( 5x - 4) > - 9# and #3x > - 4( x - 2)#?
  
• How do you simplify #(-10)^5/ (-10)^9# leaving only positive exponents?
  
• What are the asymptotes and removable discontinuities, if any, of #f(x)= 1/x^2+2#?
  
• How do you solve #15+ 5t + 5= 415#?
  
• How do you solve #13 = 8-5d#?
  
• How do you solve using the quadratic formula #3x^2 + 6x = 12#?