Hello there!
To start, first look at the information you already know: your bill without the tax is 725 dollars, and the tax is 6%.
To solve this for the amount of tax added, you must multiply 6% by 725 since the tax is 6% of the bill. Before you do that, first convert 6% to a decimal by moving the decimal two places to the left. This would result in 0.06 as your decimal.
Now, set up your expression to find the amount of sales tax:
0.06*725
When you simplify, you should get that the sales tax is $43.50.
Hope this helps!
