Question
The total mass of Will and Marion is 8914 kg. Will weighs 3145 kg. 
  1. What is Marion's mass?
  2. How much heavier than Will is Marion?
4 m
(a)

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(b)

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The total mass of Will and Marion is 8914 kg. Will weighs 3145 kg. 
  1. What is Marion's mass?
  2. How much heavier than Will is Marion?