Answer:
the journal entries to record this transaction should be:
August 3, purchase merchandise on account terms 2/10, n/45
Dr Merchandise inventory 9,200
Cr Accounts payable 9,200
August 10, invoice is paid within discount period:
Dr Accounts payable 9,200
Cr Cash 9,016
Cr Purchase discounts 184
I recorded the transactions using the gross method, if you use the net method then the transaction should have been originally recorded with the sales discount (Dr Merchandise inventory 9,016, Cr Accounts payable 9,016).