idk

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Across
  1. 2. income after your retire
  2. 3. the state of being unstable
  3. 7. the main office of a company
  4. 8. an incident or event
  5. 9. the branch of science and technology concerned with the design, building, and use of engines, machines, and structures
Down
  1. 1. the art of creating styles
  2. 4. intensely, irritating and frustrating
  3. 5. the amount of money taken by a business in a particular period
  4. 6. an agent who supplies goods to retailers
  5. 7. best football club in the world