Relax

Respuesta :

solution:

[tex]\frac{c}{w}=\frac{20.25}{\frac{3}{4}}\\

\frac{c}{1}=\frac{20.25\times 4}{3}\\

\frac{c}{1}=\frac{81}{3}\\

c=27\\

1Ib cost is \$ 27[/tex]