One

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Across
  1. 3. a flat usually paper container, as for a letter
  2. 4. relating to a whole, a product of addition
  3. 5. humorous action of game
  4. 7. electronic machine that stores information
  5. 8. person who created or produced a device or process for the first time
  6. 9. figure with three sides and three angles
Down
  1. 1. Occurring at the end, conclusion, can not be undone, last exam in a class
  2. 2. writing with a rhythm that repeats
  3. 5. thin sheet usually made with wood straw or bark
  4. 6. A person skilled in painting, sculpture, music or writing