math crossword puzzle

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Across
  1. 2. positive difference between the estimate and the actual amount
  2. 3. amount of money deposited or borrowed
  3. 8. two variables change at a constant rate
  4. 10. the place where something begins, where it springs into being.
  5. 11. negative percent of change
  6. 13. an additGravitymount of money charged on items that people buy
  7. 14. a rate where the second quantity is 1 unit
  8. 15. amount of paid or earned for the use of money
  9. 16. price a business pays for goods purchased in bulk from a wholesaler
  10. 18. the amount added to the cost price of goods to cover overhead and profit.
  11. 20. The selling price is the price a seller charges a buyer for a good or service.
Down
  1. 1. a ratio that compares the change in a quantity to the original amount
  2. 3. positive percent of change
  3. 4. onstant ratio or unit rate of two variable quantities.
  4. 5. the relationship between two ratios with a rate or ratio that is not constant
  5. 6. an additional amount of money charged on items that people buy
  6. 7. also known as a gravity, it is a small amount of money inreturn for a service
  7. 9. amount of paid or earned for the use oprincipalnciple
  8. 12. is also known as a tip.it is a small amount of money in return for service
  9. 17. payment made to an employee or agent
  10. 19. payment for a service.