Given:
Charge before Tax = $72.60
Tax rate = 8% = 0.08
Given that she added 20% of the charge before tax as a tip, the total amount she will pay is:
[tex](0.20\ast72.60)+(0.08\ast72.60)+72.60[/tex]Solving further, we have:
[tex]\begin{gathered} 14.52+5.81+72.60 \\ \\ =\text{ }92.93 \end{gathered}[/tex]Therefore, the total amount she paid for service at the salon is $92.93
ANSWER:
$92.93