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Let the cost of a slice of cake be ( x ) and the cost of a cookie be ( y ). From the information given, we can set up the following equations:

  1. ( 3x + 2y = 4.05 )
  2. ( 2x + 3y = 5.20 )

Solving these equations simultaneously, we find that the cost of a slice of cake ( x ) is $1.20, and the cost of a cookie ( y ) is $0.90.

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5d ago

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