Use the 30 day method where all months are considered to have 30 days. A buyer has an invoice dated April 15th with a list price of $34,000 worth of chapstick. She received trade discounts of 40%, 15%, 5%. Terms are 3/10 net 30, FOB factory. Shipping charges of $400 were prepaid by the vendor. Payment is made on April 20th. How much should the buyer remit to the vendor? $15,836.81 $16,473.00 $15,978.81 $16,378.81