Question
The total mass of Mark and Vanessa is 8335 kg. Mark weighs 3079 kg. 
  1. What is Vanessa's mass?
  2. How much heavier than Mark is Vanessa?
4 m
(a)

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(b)

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The total mass of Mark and Vanessa is 8335 kg. Mark weighs 3079 kg. 
  1. What is Vanessa's mass?
  2. How much heavier than Mark is Vanessa?