Respuesta :

Answer:

5. 66%

Step-by-step explanation:

Sales tax = $19.80

Cost of item before sales tax = $330

Cost of item after sales tax = 19.80+19.80 + 19.80+330

= $349.80

Sales tax rate

19.80349.80×100%5.66%\begin{lgathered}\frac{19.80}{349.80} \times 100\% \\ 5.66\%\end{lgathered}

349.80

19.80

×100%

5.66%

So rate of sales tax is 5.66%

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