can you please show me an easy way to understand these problems please

uncollectible accound year-end balance in accounts receivable is $2,100,000. The allowance for receivable at the end of ad beginning in accounts receivable is $2,100,000. The allowance for were written off during the year indicates a rear credit balance of $25,000. An aging of accounts A. What is N atalicio Limited's bad debt expense? A. $2,500. B. $47,500. C. $50,000. D. $52,500. E. $102,500. 6. On May 1, 2022, Tony Lama Boots sells 7,000 boots to Starr Western Wear in exchange for a sixmonth, $750,000 noninterest-bearing note. The boots each have a normal selling price of $100. When Tony Lama records the May 19 sale in its books, for what amount will it credit sales revenue? A. $705,000. B. $712,500. C. $725,000. D. $700,000. E. $750,000. 7. Chico's Tacos transferred $75,000 of accounts receivable to El Paso Bank. The transfer was made without recourse. El Paso Bank remits 90% of the factored amount to Chico's and EI Paso Bank retains 10%. When the bank collects the receivables, it will remit to Chico's the retained amount (which Chico's estimates has a fair value of $7,000) less a 3% fee (3% of the total accounts receivable factored). At what amount should Chico's record the receivable from EI Paso Bank? D. $7,000