please fast response i dont have time again

Three invoices for the amounts of \\( \\$ 34,500, \\$ 28,000 \\), and \\( \\$ 40,000 \\) were received on July 28, 2014, August 27, 2014, and September 19,2014, respectively. If the payment terms are \\( 3 / 7,2 / 30, n / 60 \\), calculate the amount that must be paid on September 26,2014 to settle all three invoices. Round to the nearest cent