Prepare your journal entries for the following sales$-$related transactions using the Gross method for recording cash discounts.

#$1-$ June $1$ You sell $$10,000$ of merchandise to a customer on account, terms $3/10,$ n$/45.$

#$2-$ June $3$ Your customer returns $$1,000$ of merchandise within the discount period.

#$3-$ June $7$ Your customer makes a payment toward $$4,000$ of his account within the discount period.

#$4-$ Aug $13$ Your customer pays the remaining balance due on this account after the discount period.