Because the video game was marked down by 60%, we first need to find the discounted price;
(1 - 0.60)*22.50 = 0.40 * 22.50 = 9
The game now costs $9.
Since Norwood has a sales tax of 2%, we need to add that to the final cost:
9 + 0.02*9 = 9 + 0.18 = 9.18
The final cost of the video game is $9.18.
If you need me to explain anything I did here, just ask :)
-T.B.