The sales

The sales tax rate is 4.447​% for the city and 4​% for the state. Find the total amount paid for 2 boxes of chocolates at ​$17.96 each.

Correct result:

t =  38.9542

Solution:

$$\begin{gathered} p=2\cdot 17.96=35.92 \\ t=p+p\cdot {\displaystyle \frac{4.447+4}{100}}=35.92+35.92\cdot {\displaystyle \frac{4.447+4}{100}}=38.9542 \end{gathered}$$

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