Across
- 3. to swap or give up one item for another
- 4. money system every country has
- 8. when an item is difficult to find or get
Down
- 1. a person who sells goods and services
- 2. amount of something that is available
- 5. study of how people use money, goods and services
- 6. number of people who want or need something
- 7. a person who buys goods and services from other people