Question
The total mass of Dana, Jane and Tiffany is 25a kg. Dana has a mass of 4a kg. Jane is 6 kg heavier than Dana.
  1. What is Tiffany's mass in terms of a?
  2. If a = 13, what is Tiffany's mass? 
3 m
(a)

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(b)

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The total mass of Dana, Jane and Tiffany is 25a kg. Dana has a mass of 4a kg. Jane is 6 kg heavier than Dana.
  1. What is Tiffany's mass in terms of a?
  2. If a = 13, what is Tiffany's mass?