How can I publish my form so that folks can submit it?

Go to the Publish tab of the form builder, and copy the URL. You can publish the form that way.

For reference: https://www.jotform.com/help/401-where-to-find-my-form-url.

You can also embed the form. Please visit the following user guide for more details:

https://www.jotform.com/help/67-which-form-embed-code-should-i-use