sara is looking to purchase a washer and dryer. The saturday newspaper has an advertisement for a local appliance store offering 90 days, same as cash financing. sara asked how the financing worked and learned that she could pay for the washer and dryer any time during the first 90 days for the purchase price plus sales tax. if she waited longer, she would have to pay the purchase price, plus sales taxes, plus 26.4% annual simple interest for the first 90 days. plus 3% simple interest per month on the unpaid balance after 90 days. together the washer and dryer cost 599 plus the 6.25% sales tax. Sara knew that her tax refund from the irs would be $800, so she bought the washer and dryer confident that she could pay off the balance within the 90 days. If Sara pays off the balance within 90 days, how much will she pay