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

Click button first when a symbol is required. X

(b)

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