Answer:
1) 390 warranty expense
2) 390 warranty liability
3) zero as the amount is deducted from the liability
Explanation:
the warranty expense was determinated using an allowance of 3% of the sale:
$ 13,000 x 3% = $ 390
the warranty liability will be created for the same amount
On 2018 it will decrease the liability against inventory It will not recognize a warranty expense.