How to show previous answers in the form.

It would be nice for things like volunteering or snacks to be able to see who signed up so that when you fill out the form you already know what has been chosen. Currently only the admin can see it. I like that but would be nice for an option to make results view-able by public

You could create a form report, such as the Grid Listing report: https://www.jotform.com/help/105-How-to-Create-a-Grid-Listing-Report

Then add the Iframe Embed widget in the form in order to put the Report URL, so the report will show up in the form.