I need some help with my homework I'm really stuck

Question 15

Santa Fe Retailing purchased merchandise "as is" (with no returns) from Mesa Wholesalers with credit terms of 3/10, n/60 and an invoice price of $30,000. The merchandise had cost Mesa $20,460. Assume that both buyer and seller use a periodic inventory system and the gross method.

1. Prepare entries that the buyer should record for (a) the purchase, (b) cash payment within the discount period, and (c) cash payment after the discount period.

2. Prepare entries that the seller should record for (a) the sale, (b) cash collection within the discount period, and (c) cash collection after the discount period.

I have some screenshots down below

Required 1 Required 2 Prepare entries that the buyer should record for (a) the purchase, (b) cash payment within the discount period, and (. after the discount period View transaction list lii'iew journal entry worksheet a. Purchases 30,000 Accounts payable 30,000 I 2 0. Accounts payable 30,000 Purchases discounts 900 Cash 29,100 c. Accounts payable 30,000 Cash 30,000 Required 2 > Required 1 Required 2 Prepare entries that the seller should record for (a) the sale, (b) cash collection within the discount period, and (c) cash collection after the discount period. View transaction list View journal entry worksheet I 1 a. Accounts receivable Sales / 2 in. Cash Sales discounts Accounls receivable / 3 c. Cash