Mr. Figgy's Punny Puzzle

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Across
  1. 2. I'm _______ that a negative times a negative is a _______.
  2. 4. This is brown and sticky.
  3. 5. What is the answer.
  4. 7. Mirror mirror on the wall, what transformation is the prettiest of them all?
  5. 8. The Pythagorean Theorem online works in temperatures of _______ degrees.
Down
  1. 1. I mixed up CSUB's letters and graduated from this university instead.
  2. 2. Del Rio is a prince and a pal.
  3. 3. This animal protects the math pod. There's no-fin that can get through.
  4. 6. Rise over run is a slippery ______.
  5. 9. I can't even.