cool math vocabs

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Across
  1. 3. is a way of pricing how much something is based on how much estimated use time it has left
  2. 4. a series of payments of the same kind made at equal time intervals
  3. 5. every year
Down
  1. 1. it's like interest, but it keeps stacking on itself, in a sort of compounding way.
  2. 2. half of every year