Answers created by Sherri

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• Lisa and Jan found that 5 times the sum of a number and -2 equals 30. What is the number?
  
• Pan's math score is 84 this time. Last time he got 70. What is the percent of increase (from last time)?
  
• How do you solve #x+ 2x = 360#?
  
• Question #41bd6
  
• Question #92783
  
• How to solve completing the square? 2x^2-8x-15=0
  
• What is activation energy? How is it related to the collision theory?
  
• How do you solve #10-2.7y=y+9#?
  
• What can affect the rate of an enzyme-catalyzed reaction?
  
• Question #868c9
  
• According to the law of conservation of energy, energy can neither be created nor destroyed. If this is true, why is there less energy in the top of the energy pyramid than there is in the bottom of the energy pyramid?
  
• What animal classification is a bird?
  
• What are the advantages and disadvantages of renewable sources?