The tax itself is $1.47
You can calculate that by adding up all four items. You should get $24.50. Then, you multiply 24.50 by 6%. When multiplying 24.50 and 6%, make sure you multiply (24.50)(0.06) and not (24.50)(0.6).
The total cost of the items after tax is $23.03 just in case you needed that. Just subtract
24.50 - 1.47