Please help! I'm really struggling with parts of information that I need help on

On January 1, 2024, the general ledger of Big Blast Fireworks includes the following account balances: The $46,000 beginning balance of inventory consists of 460 units, each costing $100. During January 2024, Big Blast Fireworks had the following inventory transactions: January 3 Purchase 1,450 units for $158,050 on account ( $109 each). January 8 Purchase 1,550 units for $176,700 on account ( $114 each). January 12 Purchase 1,650 units for $196,350 on account ( $119 each). January 15 Return 180 of the units purchased on January 12 because of defects. January 19 Sell 4,800 units on account for $720,000 The cost of the units sold is determined using a FIF0 perpetual inventory system. January 22 Receive $705,000 from customers on accounts receivable. January 24 Pay $500,000 to inventory suppliers on accounts payable. January 27 Write off accounts receivable as uncollectible, $2,500. January 31 Pay cash for salaries during January, $135,000. The following information is available on January 31, 2024. a. At the end of January, the company estimates that the remaining units of inventory purchased on January 12 are expected to sell in February for only $100 each. [Hint: Determine the number of units remaining from January 12 after subtracting the units returned on January 15 and the units assumed sold (FIFO) on January 19.] b. The company records an adjusting entry for $3,530. for estimated future uncollectible accounts. c. The company accrues interest on notes payable for January. Interest is expected to be paid each December 31. d. The company accrues income taxes at the end of January of $13,900