Given:-
Sales tax is $12.22.
Total purchase is $216.
To find:-
Rate of sales tax.
To find the rate of sales of tax. we need to divide the sales tax amount amount by the total purchase and multiply by 100 . That is,
![(12.22)/(216)](https://img.qammunity.org/2023/formulas/mathematics/college/3i080wqrzql9hbn9oksm5jmy1lrvppor03.png)
So by furthur simplification. we get,
![\begin{gathered} (12.22)/(216)*100=0.0565*100 \\ \text{ =5.65} \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/t0kccgwqs2mwbhuiq49uxqsnt8qdo3ydpn.png)
So rounding off the rate of sales tax the value is 5.66%