Solution:
The cost of the Camera is $540
The sales tax is 7.2%
To find the tax charge, the formula is
[tex]Tax\text{ charge}=Cost\text{ of item}\times\frac{sales\text{ tax }\%}{100}[/tex]Substitute into the formula above
[tex]\begin{gathered} Tax\text{ charge}=540\times\frac{7.2}{100} \\ Tax\text{ charge}=\text{\$38.88} \end{gathered}[/tex]Hence, the tax charged is $38.88.
The total cost of the Camera will be
[tex]=540+38.88=\text{\$578.88}[/tex]Hence, the total cost of the Camera is $578.88