Respuesta :
[tex]\bf \begin{array}{ccll}
lbs&\$\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
2&4.50\\
3&x
\end{array}\implies \cfrac{2}{3}=\cfrac{4.50}{x}\implies x=\cfrac{3\cdot 4.50}{2}[/tex]