Enter the beginning balances for Accounts Receivable and Allowance for Doubtful Accounts in a tabular summary. Use the summary to record transactions (a), (b), and (c) below. (a) Record sales and collections during the period, (b) Record the write-off of uncollectible accounts during the period. (c) Record bad debt expense for the period. (Enter nesative amounts using either a negative sign preceding the number eg-45 or parentheses eg. (45).)