Answer:
The percent of the cost tax is:
8.5%
Step-by-step explanation:
Cost of shoe before tax= $ 78
Cost of shoe after tax= $ 84.63
This means that the cost of tax is:
Cost of shoe after tax-cost of shoe before tax
= $ 84.63-$ 78
= $ 6.63
Now, the percent of tax is calculated as:
[tex]Percent\ tax=\dfrac{Cost\ of\ tax}{Cost\ of\ shoe\ before\ tax}\times 100\\\\\\Percent\ tax=\dfrac{6.63}{78}\times 100\\\\\\Percent\ tax=8.5\%[/tex]
Hence, the percent tax is:
8.5%
