Answer and Explanation:
The journal entries are shown below:
a.
Account receivable Dr $83,000
     To Sales $83,000
(Being sales is recorded on account)
Cost of goods sold Dr $6,500
   To Inventory $6,500
(Being cost of the merchandise is recorded)
Cash $82,170
Sales discount $830 ($83,000 × 1%)
   To Account receivable $83,000
(being cash received is recorded)
b.
Inventory Dr $82,170
  To Account payable $82,170
(being inventory purchased on account)
Account payable Dr $82,170
    To Cash $82,170
(being cash paid is recorded)
c.
Account payable $82,170
Lost on purchase discount $830
  To Cash $83,000
(Being cash payment is recorded)