Respuesta :

Simple.....

you have [tex] \frac{18}{a} =7 [/tex]

to find what a is....simplify/multiply both sides....

[tex]a* \frac{18}{a} =7*a[/tex]

simplifying it too....

18=7a

[tex] \frac{18}{7} = \frac{7a}{7} [/tex]

[tex] \frac{18}{7} =a[/tex]

Thus, your answer, C.

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