A firm has a December $31$ fiscal year end. Provide the required journal entry for each of the following situations. $($Omit explanations and dates.$)$

$$The company pays its one employee $$2,500$ wages for a $5-$day work week every Friday. December $31"$ fell on a Wednesday. What is the journal entry when the employee is next paid?

$$At the end of its first year in business, the firm estimates that merchandise sold for $$9000($cost$-$$$4000)$ will be returned next year, All sales were in cash.

$$Total inventory at cost is $$300,000,$ market is $$295,000.$ Write$-$downs are commonplace. What is the adjusting entry on Dec $31?$

$$The firm has a purchase commitment to buy inventory for $$50,000.$ By the end of the year, market value of this inventory was $$45,000,$ and at the purchase date, it was worth $$35,000.$ What is the journal entry on the date of purchase?