$ sudo apt-get update
$ sudo apt-get install libopenblas-base 

libopenblas-base is installed in your system.

Make ensure the libopenblas-base package were installed using the commands given below,

$ sudo dpkg-query -l | grep libopenblas-base *

You will get with libopenblas-base package name, version, architecture and description in a table

libopenblas-base package basic information: