Use the following to answer questions 20 - 22 At the beginning of the year; AL, Inc.'s allowance for uncollectible accounts had a beginning balance of $5,500. On January 22nd, AL wrote off the A/R from customer C for $500. 20. Record the entry for write-off 21. $ By the end of the year (December 31st); total accounts written off were $5,395 (including the write off for customer C). What is the balance in the allowance for uncollectible accounts after all the write-offs? 22. $ How much did bad debt expense change when the company wrote off the accounts receivables