hello!
In order to solve this inequality, we should divide both sides by 9:-
[tex]\sf{9x < 72}[/tex]
Why 9? Because x is multiplied by 9, and we need to isolate x in order to find its value.
[tex]\sf{x < 8}[/tex]
Hence, that's the solution to the inequality.
It also means that the numbers less than 8 will satisfy the given inequality (make the inequality true)
(Option C is correct :) )
note:-
Hope everything is clear; if you need any explanation/clarification, kindly let me know, and I will comment and/or edit my answer :)
