The computer store is having a sale on lets us each laptop is being sold for 15% off the regular price Avery wants to buy a laptop that is regularly $800 is a 5% sales tax is applied to the sales price of the lights up what is the final amount overpaid show your work

then right before checking out if you find a coupon on the stores website that will take an additional 10% off the sale price right before taxes added now what is the final price Avery will pay including tax show your work