\( 1 \leftarrow \) The sales tax rate in a city is \( 8.4 \% \). Find the tax charged on a purchase of \( \$ 205 \), and the total cost. \( \begin{array}{l}\text { How much tax is charged on a purchase of } \$ 205 \text { ? } \\ \square \\ \text { (Simplify your answer. Type an integer or a decimal. Round to the nearest cent if needed.) }\end{array} \)

To find the sales tax charged on a purchase of $205, you multiply the purchase amount by the tax rate. So, you calculate \( 205 \times 0.084 = 17.22 \). Therefore, the tax charged is $17.22. Now, to find the total cost, you simply add the sales tax to the original purchase price: \( 205 + 17.22 = 222.22 \). Thus, the total cost is $222.22. Here you go! The tax charged is $17.22, and the total cost is $222.22.