Answer and Explanation:
The journal entries are shown below:
On May 10
Purchases ($16,400 × 98%) $16,072 Â
   To Accounts Payable  $16,072
(Being the purchase of goods is recorded)
On May 11
Purchases ($15,500 × 99 %) $15,345 Â
   To Accounts Payable  $15,345
(Being the purchase of goods is recorded)
On May 19
Accounts Payable $16,072 Â
 To Cash  $16,072
(Being the payment of cash is recorded)
On May 24
Purchases ($10,600 × 98%) 10,388 Â
   To Accounts Payable  10,388
(Being the purchase of goods is recorded)