Answers created by Abhi

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• What is the percent change of 12 to 16?
  
• Walter buys a bus pass for $30. Every time he rides the bus, money is deducted from the value of the pass. He rode 12 times and was deducted from the value of the pass. How much does each bus ride cost?
  
• How do you find the slope for (2,5); (9,1)?
  
• How do you find all the real and complex roots of #x^3 + 4x^2 + 3x = 0#?