math

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Across
  1. 4. personal opinions to influence your judgement
  2. 5. a selection taken from a larger group
  3. 7. value the value in the present of a sum of money
  4. 9. interest where interest is calculated on the amount borrowed and previous interest
  5. 11. sides and angles of a triangle
  6. 13. the middle number in a sorted list of numbers
Down
  1. 1. interest calculating the interest charge on a loan
  2. 2. Where a function equals the value zero
  3. 3. The difference between the lowest and highest values
  4. 6. having a common vertex and a common side
  5. 7. the whole group from which a sample is taken
  6. 8. a possible result
  7. 10. of symmetry A line through a shape so that each side is a mirror image
  8. 12. the average of numbers
  9. 13. number which appears most