Prefixes and Suffixes

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Across
  1. 2. the focus of what
  2. 5. graph of what
  3. 7. great / Joy
  4. 8. multiple
  5. 9. study of existence
Down
  1. 1. comes in multiples of 10
  2. 3. spent on a clock
  3. 4. moving to
  4. 6. one hundred of what
  5. 7. two wheels