Respuesta :

[tex]\bf \begin{array}{ccllll} ounces&doses\\ \textendash\textendash\textendash\textendash\textendash\textendash&\textendash\textendash\textendash\textendash\textendash\textendash\\ 4&20\\ 13&x \end{array}\implies \cfrac{4}{13}=\cfrac{20}{x}[/tex]

solve for "x"
5plus
65 doses because each ounce is 5 doses so 13 times 5 is 65

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