At January 1, 2018, Betty DeRose, Inc. had an allowance for bad debts with a $3,100 credit balance. During 2018, Betty wrote-off accounts receivable as uncollectible totaling $4,700. The aging schedule below was prepared by Betty DeRose, Inc. at December 31, 2018: Accounts Receivab ib $150,000 not past due 1-30 days past due 31-60 days past due 61-90 days past due over 90 days past due 55,000 24,000 13,000 6,000 1% 4% 9% 25% 45% Calculate the amount of bad debt expense recorded by Betty DeRose, Inc. for 2018. Do not use decimals in your