Answer:
Date Accounts Titles and Explanations Debit Credit
Sept, 11 Cash $450
2016 Sales $450
(To record the Cash Sales)
Sept, 11 Warranty Expenses $40.50
2016 ($450 x 9%)
Estimated Warranty Payable $40.50
(To record the Warranty Expenses)
July, 24 Estimated Warranty Payable $32
2017 Repairs Parts Inventory $32
(To record the material taken from Inventory)