Hello! I need help understanding this topic a little bit more. - thank you in advance

Given:
Let t be the number of hours that meeting room rented.
College charges a reservation fee of $33 and an additional fee is $7.80 per hour
[tex]\begin{gathered} 7.80t+33<103.20 \\ 7.80t<103.20-33 \\ 7.80t<70.20 \\ t<9 \end{gathered}[/tex]Flim club can rent a room less than 9 hours.