Answers edited by Safi

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• What is the percent change if the original number is 66 and the new number is 30?
  
• How do you solve #(1+2y)/(y-4 )= (4y^2+5y)/(2y^2-7y-4)#?
  
• How do you find the slope and y intercept for #8x+3y= -9#?
  
• What is the equation in point-slope form of the line passing through (2, 5) and (–1, 8)?