Respuesta :

The cost of jewelry is $78.

The increment is 12%.

The new cost can be determined as,

[tex]\begin{gathered} \text{New Cost=78+78}\times\frac{12}{100} \\ =78+9.36 \\ =87.36 \end{gathered}[/tex]

Thus, the new cost of the jewelery is $87.36.

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