Three invoices for the amounts of $35,000, $25,000, and $41,900 were received on November 14, 2014, December 14, 2014, and January 6, 2015, respectively. If the payment terms are 3/7, 2/30, n/60, calculate the amount that must be paid on January 13, 2015 to settle all three invoices. Round to the nearest cent