Gregg Company uses the allowance method for recording its expected credit losses. It estimated credit losses at three percent of credit sales, which were $900,000 during the year. On December 31, the Accounts Receivable balance was $150,000, and the Allowance for Doubtful Accounts has a credit balance of $12,200 before adjustment. Required:
a. Prepare the adjusting entry to record the credit losses for the year
b. Show how Accounts Receivable and the Allowance for Doubtful Accounts would appear in the December 31 balance sheet.

You are the manager of a large crude-oil refinery. as part of the refining process, a certain heat exchanger (operated at high temperatures and with abrasive material flowing through it) must be replaced every year. the replacement and downtime cost in the first year is $165 comma 000. this cost is expected to increase due to inflation at a rate of 7% per year for six years (i.e. until the eoy 7), at which time this particular heat exchanger will no longer be needed. if the company's cost of capital is 15% per year, how much could you afford to spend for a higher quality heat exchanger so that these annual replacement and downtime costs could be eliminated?