Hi Janet,
View menu items let you view certain features applied to the current document. If you haven't created or opened a document, there is nothing for an Inspector to view or inspect, so the choice is not available.
To use an Avery template in Pages, you first need to choose a template matched to the labels you are using, and download that template from Avery's website to your computer. Avery Templates are designed for use with MS Word (and other applications). Pages can open Word documents, so choosing a Word template is likely your best choice.
Once downloaded, you can find the template in your Downloads folder, and open it with Pages.
Regards,
Barry
PS: "I looked on line and it said to go to pages…" doesn't offer much information that would help solve your issue.
WHERE did you look?
WHO or WHAT is "it"?
WHEN did "it" tell you to 'go to pages? (Immediately on opening the page, or after some other instructions? If 'after,' what were the instructions preceding the direction to 'go to pages'?)
Please remember: We're not there, looking over your shoulder. We can't see what you can see. We don't know what you've done unless you tell us. The more information you provide, the more we have to work with in finidn a solution to your issue.
Thank you for providing the model of Mac you are using and the version of macOS it is running.
B