The tax should be added to the final cost of the purchase.
$ 2.68
It is given that Addison paid $1.29 for gum and $ 0.89 for the package of notebook paper. Adding these together will give us the total amount she paid for her goods.
1.29+0.89=$2.18
The tax for this purchase is $0.14. If we add this to the amount spent on goods, we get the total amount Addison paid.
2.18+0.14=$2.32
Since she gave a $ 5 bill, we can calculate the amount of change by subtracting $2.32 from $5.
5-2.32=$2.68
Addison should receive $ 2.68 in change.
