Answer:
a. Journalize the adjusting entry for the estimated customer allowances.
The adjusting entry should = total sales x estimated percent of returns = $1,750,000 x 0.6% = $10,500
b. Journalize the adjusting entry for the estimated customer returns.
This amount is given in the question, $8,000, so you need to record it as a decrease in COGS and an increase in returns inventory.