Answer :

luana
[tex]\frac{2}{5}\cdot80\frac{1}{2}=\\\\\frac{2}{5}\cdot\frac{161}{2}=\\\\\frac{161}{5}=32\frac{1}{5}\\\\This\ dog\ would\ weight\ 32\frac{1}{5}\ pounds\ on\ mars.[/tex]

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