If you are buying at item at a store for a price of $41, and there is a 7.3% tax added on top, what would be the total amount due at the register, to the nearest cent?

$43.99

7.3% in decimal form is 0.073, you would just take the number and divide by 100.
Multiply that by 41 to get the tax amount, which is 2.993
Add the two together to get the total amount, then round to the nearest cent, which is in the hundredth place