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Variables

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• 

  What number is represented by m, if 5m – 4 = 46?

  
  

  10

  45

  50

  250

  
  
  

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• 

  Josie’s age is four years greater than double Mario’s age. If Mario’s age is n years, which of these expressions represents Josie’s age?

  
  

  4n

  4n + 2

  2n + 4

  2(n + 4)

  
  
  

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• 

  What is the value of the expression when a = 6 and b = 2? 4b + b ÷ (a - b)

  
  

  5

  9

  11

  16

  
  
  

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