Respuesta :

So the watch costs 75.99 including sales tax.

The sales tax is 6.25% of the value of the watch.

100% of the value of the watch is n.

100% + 6.25% of the value of the watch is 106.25/100 * n = 75.99

Let's calculate the sales tax...

[tex]\frac { 106.25 }{ 100 } \cdot n=75.99\\ \\ 106.25\cdot n=7,599\\ \\ n=\frac { 7,599 }{ 106.25 }[/tex]

[tex]\\ \\ =71.52\\ \\ Sales\quad Tax\quad is\quad Therefore:\\ \\ 75.99\quad -\quad 71.52\quad =\quad 4.47[/tex]

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