Respuesta :
[tex]\bf \begin{array}{ccll}
fishes&hours\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
4&2\\
f&6
\end{array}\implies \cfrac{4}{f}=\cfrac{2}{6}\implies \cfrac{4\cdot 6}{2}=f[/tex]