Are you smarter than a Grade 10 Student?

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Across
  1. 2. ∝
  2. 3. I contain all sets, what am I? (... sets)
  3. 7. <≠>
  4. 8. Letters that are used in math
  5. 11. Imaginary + real = … numbers
  6. 13. Standardizing an expression
  7. 15. Variables together with no equality or inequality sign
  8. 16. The relation between 2 different sets
  9. 19. Numbers that can be expressed in a fraction
  10. 21. OOO but overlapping (2 Words)
  11. 22. What do you call (AuB)’ = A’ n B’ (...Law)
  12. 25. %Change (2 Words)
  13. 26. Cardinality > Natural numbers (2 words)
  14. 27. √f(x) < Q(x)
  15. 29. When you pass 0 on an axis (x/y…)
  16. 35. A type of numbers that fulfill this equation | When 7x < 71^2 - 5041
  17. 36. Equations with the variable x^2
  18. 39. n (Set Notation)
  19. 40. When you flip a cake upside down, but in math
  20. 41. Irrational roots
Down
  1. 1. When k is always equals to 8
  2. 4. Numbers that can be expressed without a . in a base 10 system
  3. 5. Rational + Irrational = … numbers
  4. 6. A graph with straight line (2 words)
  5. 9. When bank give you 5% of your initial savings per year
  6. 10. 4x + 16 can be simplified by….
  7. 12. ‘ (Set Notation)
  8. 13. ⊆ (Set Notation)
  9. 14. F(x)
  10. 17. In the equation y=mx, what is m?
  11. 18. u (Set Notation)
  12. 20. The square root of -sin^2x + -cos^2x
  13. 23. What do you call y in y^x
  14. 24. A collection of well defined elements
  15. 28. All the possible answer to a question
  16. 30. Synonym of counting numbers
  17. 31. Numbers that can be divided by x when x = y, y being the number itself and 2z+e^ipi when 3^4z-9 = 1/243
  18. 32. x is an example of this, when 4x = √32
  19. 33. Equations with answer that starts with In….d
  20. 34. A=P(1+r/n)^nt
  21. 37. Another word for exponents
  22. 38. Sets like this are an example of … {x: √(x - (x + 1), x ∈ R} (... sets)