This is similar to the markup price question. The tax is 4.1% or .041. We need to add the tax to the original price of the shirt. We know that the shirt cost $25.00 and that's also the original price. To add the tax to it, we add the .041 to 1.00
The reason for this is because multiplying 25 by 1 will get you 25. So, we know that 1.00 is the original price as a percentage. We need to add .041 of 25 to itself. We can do that by adding the original percentage 1.00 to .041 and get 1.041 This means that we're getting the original price plus the tax added with it.
So, 1.041 × 25 = 26.025 which rounds to $26.03 Hope this helped!