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• 

  Alex has $5.00 from his allowance. He visits an arcade where lemonade costs $0.75 and video games cost $0.25.

  
  Which of the following expressions represents the amount of money Alex will have left if he buys one lemonade and plays n video games?

  
  

  5.00 + 0.75 + 0.25n

  5.00 - 0.75 - 0.25n

  5.00 + 0.75n + 0.25

  5.00 - 0.75n - 0.25n

  
  
  

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• 

  Which expression is equivalent to 3(x + 7)?

  
  

  x + 10

  x + 21

  3x + 7

  3x + 21

  
  
  

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• 

  Which expression is equivalent to 4•c•c + 5 + c?

  
  

  7c + 5

  9c + c2

  20 + c2 + c

  4c2 + c + 5

  
  
  

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