Question
The total mass of Bryan and Lucy is 6556 kg. Bryan weighs 30211 kg. 
  1. What is Lucy's mass?
  2. How much heavier than Bryan is Lucy?
4 m
(a)

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(b)

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The total mass of Bryan and Lucy is 6556 kg. Bryan weighs 30211 kg. 
  1. What is Lucy's mass?
  2. How much heavier than Bryan is Lucy?