This is for sage 50 accounting

which of the following activies involves transaction processing in the sales and collections cycle? which of the following activies involves transactions processing in the purchase and cash disbursement cycle? which activities are maintence activities?

1. entering sales orders

2. adding a new vendor

3. purchasing inventory

4. billing customers

5. changing an employees pay rate

6. preparing a regular check

7. entering the date of a cash disbursement

8. printing an invoice

9. changing a customer's credit limit