[tex]\bf \begin{array}{ccll}
\${data-answer}amp;\stackrel{cans}{lbs}\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
0.08&1\\
x&21.5
\end{array}\implies \cfrac{0.08}{x}=\cfrac{1}{21.5}\implies \cfrac{0.08\cdot 21.5}{1}=x[/tex]
