Question

Art supplies in washington dc costs $28 if the sales tax is 6% what is the total cost of art supplies

Answer 1

You can simply multiply 28 and 1.06 since there is an additional 6%tax. You get 29.68

Answer 2

to find how much the total would be with tax, you use this equation
x=item price
0.06x+x
when you pit in in the equation, it would be
0.06×28+28
which equals
29.68