[tex] \large\boxed{\begin{array}{lr} \underline{\sf{x \: o \: lucro \: mensal \: no \: mês \: de \: junho....}} \\ \\ \sf{média \: dos \: lucros \: no \: semestre....} \\ \\\boxed{\begin{array}{lr} | 20 + 35 + 25 + 30 + 30 + x | /6 \: \geqslant 30 \\ \\ x \geqslant 180 - 140 \Leftrightarrow \red{x \geqslant 40} \end{array}} \\ \\ \\\boxed{\begin{array}{lr} \boxed{\boxed{\boxed{\boxed{\boxed{\boxed{\boxed{\huge\blue{opc_{\!\!,}\tilde{ao}~(C)~40}}}}}}}}\end{array}} \end{array}}[/tex]
