Escape

12345678
Across
  1. 1. x^2
  2. 3. y=mx+c
  3. 5. never changes
  4. 6. x,y,z
  5. 7. an equation or a saying
  6. 8. solve/judge/calculate
Down
  1. 2. the name of the topic
  2. 4. 2x
  3. 5. number stuck to the variable