April 2 Purchased $4,600 of merchandise from Lyon Company with credit terms of 2/15, n/60, invoice dated April 2, and 100 shipping point. April 3 Paid $300 cash for shipping charges on the April 2 purchase. April 4 Returned to Lyon Company unacceptable merchandise that had an invoice price of $600. April 17 Sent a check to Lyon Company for the April 2 purchase, net of the discount and the returned merchandise. Purchased $8,500 of merchandise from Frist Corporation with credit teres of 1/10, n/30, invoice dated April 18, and 108 destination, April 18 April 21 After negotiations over scuffed merchandise, received from frist $500 allowance toward the $8,500 med on the April 18 purchase. April 28 Sent check to frist paying for the April 18 purchase, net of the allowance and the discount.