Happy Birthday!!

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Across
  1. 4. papa
  2. 6. t,
  3. 9. Albert Einstein
  4. 11. homophone to the french word for "yes"
  5. 12. 1+1 =
  6. 13. possess
  7. 15. one of a __
Down
  1. 1. fortunate
  2. 2. to be
  3. 3. opposite of me
  4. 4. humorous
  5. 5. laborious
  6. 7. second, minute, ____, day, week.
  7. 8. as
  8. 10. q,
  9. 14. +