Answers edited by H Dev

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• How do you solve #x^2 + 2x-7=0#?
  
• How do you combine like terms in #(5x^2+4)-(3x+7)+(2x^2-1)#?
  
• What is #(16x^3)/(5y^9) * (x^3y^7)/(80xy^2)#?
  
• How do you solve # 5/x + 6/x = 12#?
  
• How do you solve #- 7x + 2> 8#?
  
• What is 3.0 divided by 4?
  
• How do you factor 2y^2 +5y-18?
  
• How do you write 33,400,000,000,000,000,000,000 in scientific notation?
  
• What affects carrying capacity?
  
• Paul can walk 15 steps in 5 minutes. How long does it take Paul to walk 75 steps at the same speed?