It looks like #2 (+WhiteboardCreations) is a Google+ local page, while #1 is a regular page. If you have the option to delete the page, then it's likely that someone on your team with access to that e-mail address created the page at some point. If you used to use the old Google Local, then Google may have automatically created #2 for you, which you now manage.
It should be safe to delete the first page without any consequence since it doesn't appear to be connected to anything. It should warn you about any potential content that may be deleted when you go to delete it. You could also just keep the first page around if you want to, although that could get confusing. As you build out the followers for your main page, it should start to outrank the other page in the search results.