ANSWER
$29.93
EXPLANATION
The cost of he cell phone cases is $30.
A discount of 5% would mean that 5% was deducted from the price of the cell phone case.
This means that the new price is:
[tex]\begin{gathered} Price\text{ = 30 - (}\frac{5}{100}\cdot\text{ 30)} \\ \text{Price = 30 - 1.5} \\ \text{Price = \$28.50} \end{gathered}[/tex]A sales tax of 5% was applied after this discount. This means that 5% of the new price will be added to it for tax.
Therefore, the final price of the cell phone case is:
[tex]\begin{gathered} \text{ Final Price = 28.50 + (}\frac{5}{100}\cdot28.50) \\ FP\text{ = 28.50 + \$1.43} \\ FP\text{ = \$29.93} \end{gathered}[/tex]That is the final price of the cell phone case.
