please help with these 3 and 4.

What is cost of goods sold given the five transactions below? (Beginning balance inventory =8,000 ). - Your Company purchased $50,000 of inventory on account, terms 4/10,n30. - Your Company purchased inventory under FOB shipping point. Shipping cost $750. - Your Company returned $10,000 of the inventory before paying its bill. - Your Company paid the amount owed in the first transaction on day 8 . - Your company sold all of its inventory on account, terms 2/10, n30. $48,750 $38,400 $47,150 $39,150 Your Corporation's unadjusted book balance at September 30, 2020 was $1,850. The following information is available for the bank reconciliation. Deposits in transit, $500 Outstanding checks, $300 Bank service charges, $40 Bank collected an accounts receivable for Your Company, $750 NSF check written by one of Your Company's customers, $600 What is Your Company's true cash balance? $1,610. $2,010. $2,050