Can I format the Rate with decimal points so it shows on the invoice (5.00 instead of 5)?

Great question, @karen145.  You can certainly format the decimals within your invoice. That's done by performing the following steps:

1. At the top right, click the Gear icon.
2. Select Account and Settings.
3. On the left pane, select Advanced.
4. Click anywhere inside Other preferences.
5. Select your preferred Number format on the drop-down.
6. Click Save.
7. Hit Done.

Let me know if you have follow-up questions on formatting invoices or anything else within QuickBooks Online. Take care!