Secret Clue #3

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Across
  1. 2. A ratio of a fraction with the denominator 100
  2. 5. The top number of a fraction
  3. 6. A letter used to represent a numerical value
  4. 7. The relationship between two quantities
Down
  1. 1. Two rays sharing the same end point
  2. 3. The number that denotes repeated multiplication
  3. 4. The middle value of a series of numbers