On December 31, 2018, Andy Inc. has a beginning balance of \$0 for the Allowance for Uncollectible Accounts before any year-end adjustment. And has the following information for its accounts receivable and the estimated percentages of bad debts for different past-due amounts:
Age Group (days past due) | Accounts Receivable | Estimated Percent Uncollectible
------- | -------- | --------
0-30 | \$50,000 | 10%
31-60 | \$20,000 | 20%
What is the amount of bad debt expense to be reported on Andy Inc.'s financial statements for 2018 using the aging method?