hard

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Across
  1. 2. astronomer
  2. 4. mathematics
  3. 9. chemist
  4. 11. tailoring
  5. 12. mechanic
  6. 14. science
  7. 16. schematics
  8. 17. algebra
  9. 20. carpenter
  10. 21. topology
  11. 22. physics
  12. 23. marketing
  13. 24. geometry
Down
  1. 1. Economist
  2. 3. electronics
  3. 5. trigonometry
  4. 6. probability
  5. 7. accountant
  6. 8. math
  7. 10. banking
  8. 13. business
  9. 15. calculus
  10. 18. graphing
  11. 19. architecture