Money, money, money

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Across
  1. 4. something you buy that costs much less than normal
  2. 7. a large amount of money
  3. 9. money in the form of notes and coins
Down
  1. 1. a reduction in the price of something
  2. 2. a document you get showing that you have paid for something
  3. 3. made to look like something real in order to trick people
  4. 5. objects that are produced for sale
  5. 6. a special price that is lower than the usual price
  6. 8. give money back to someone because they have decided that they don't want it
  7. 9. the amount of money that you need in order to buy or do something