I have downloaded the tarball and extracted the contents, now how do I install this in Linux?
After extracting, you can either run the binaries directly from where you extracted them, or copy/move them to some other location (such as
/usr/local/bin). Where you choose to install (i.e. copy/move), them is really up to you as the admin/user of your Linux box.
A nice overview of the binaries can be found at: https://monerodocs.org/interacting/overview/