Math crossword

3. the cost of borrowing or the return on an investment
4. a rate expressed per one unit of a specific quantity
6. the difference between a measured or calculated value and the true or accepted value
10. the ratio between two directly proportional quantities
14. not having a constant ratio or relationship
18. a part or fraction of a whole, expressed as a number out of 100
20. the ratio of the increase in a value to its original value

1. a tax on the sale, transfer, or exchange of a taxable item or service
2. the price for which something actually sells.
5. an amount of money that is given to a worker such as a waiter or waitress who performs a service for you
7. a starting point on a grid that's the point
8. the total cost of ownership over the life of an asset
9. what you add to prices in order to make money
11. the additional amount of money
12. the ratio of the difference between two values
13. the payment made for the use of borrowed money or the return
15. a relationship between two variables where their ratio is constant
16. an amount of money paid for a particular piece of work or for a particular right or service
17. compare two or more numbers
19. the relative difference between a final value and an initial value