[tex]\bf \begin{array}{ccll} \stackrel{dry~food}{lbs}&days\\ \cline{1-2} 50&15\\ 80&d \end{array}\implies \cfrac{50}{80}=\cfrac{15}{d}\implies d=\cfrac{80\cdot 15}{50}\implies d=24[/tex]
24 days ik i didnt answer right but im boered and am trying to do some challenges