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Answer :

As given by the question

There are given that the blu-ray player costs is $115.99.

Now,

Sale tax is 4.5%

Then,

Total cost of blu-ray player is:

[tex]115.99+\frac{4.5}{100}\times115.99=115.99+0.045\times115.99[/tex]

Then,

[tex]\begin{gathered} 115.99+0.045\times115.99=115.99+5.219 \\ =121.209 \end{gathered}[/tex]

Hence, the total tax is