You can easily delete pages from your website by following these steps:

Go to the Website app and open the page you want to delete.

Click on the "Edit" button to open the page in edit mode.

Click on the "More" button (three dots) at the top of the page editor and select "Delete Page" from the drop-down menu.

Confirm that you want to delete the page by clicking on the "OK" button in the confirmation dialog box.

Save the changes to the website by clicking on the "Save" button.

Once you have completed these steps, the page will be deleted from your website.

Note that if the page you are trying to delete has child pages or is linked to other pages, the system will show you a warning message that the page cannot be deleted until you remove its dependencies. In this case, you will need to unlink the page from its dependencies before you can delete it.

Also, keep in mind that deleting a page will permanently remove its content and cannot be undone. So, make sure to back up your website before deleting any pages.