Question
Cathy bought 2 kg of mangosteens at $q per kg and 4 kg of pomegranates at $3q per kg.
  1. Find the amount that she paid for the fruits in terms of q.
  2. If q = 7, how much change did Mrs Cathy receive if she paid the fruit seller with a $100 note?
3 m
(a)

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(b)

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Cathy bought 2 kg of mangosteens at $q per kg and 4 kg of pomegranates at $3q per kg.
  1. Find the amount that she paid for the fruits in terms of q.
  2. If q = 7, how much change did Mrs Cathy receive if she paid the fruit seller with a $100 note?