Respuesta :

[tex]\bf \sqrt{x}~\ \textless \ ~7\impliedby \textit{then we square both sides} \\\\\\ (\sqrt{x})^2~\ \textless \ ~(7)^2\implies x~\ \textless \ ~7^2\implies x~\ \textless \ ~49[/tex]

so, check the ones that are less than 49.