Respuesta :

[tex]\frac{x}{12.6}=\frac{45}{63}[/tex]

solve for x

[tex]\begin{gathered} 12.6\times\frac{x}{12.6}=\frac{5}{7}\times12.6 \\ x=\frac{63}{7}=9 \end{gathered}[/tex]

answer: C. 9

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