Respuesta :

system of inequalitities is

[tex]\begin{gathered} 30m+45f\le60\times30 \\ 30m+45f\le1800 \end{gathered}[/tex]

thats the first equation, then

[tex]0\le f\le20[/tex]

and

[tex]m\ge0[/tex]

answer is the second one

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