I did it myself but i'm not sure can someone explain me the answers step by step?

Question 2 12 points]: AT&T's financial statements for the 2010 and 2009 fiscal years contained the following information: Balance Sheets (S in millions) 2010 2009 Current assets Accounts receivable.net of allowances for doubtful accounts of $957 and $1.202 $13.610 S14.845 Income Statements (S in millions) Revenues 2010 $124.280 2009 $122.513 In addition, the firm disclosed bad debt expenses of $1,334 million in 2010 and $1.762 million in 2009. Required: a. Determine the amount of actual write-offs made during 2010. 11 point 81202 +$334 8957 - $1579 in millions amount ofactual write-olfs made during 2010 1122513 b. Determine the amount of cash collected from customers during 2010.11 point) beginning AIR 1202 + 1u8u3 e&Gout Add or edit sales 1579 less write offs less endino AIR (957+ 13610) - 14567 lugusi cash collections 124280 1235 L 13610