AT&T's financial statements for the 2015 and 2014 fiscal years contained the following information: 2015 2014 Balance Sheets ($ in millions) Current assets: Accounts receivable, net of allowances for doubtful accounts of $704 and $454 $16,532 $14,527 Income Statements ($ in millions) Revenues 2015 2014 $146,801 $132,447 In addition, the statement of cash flows disclosed bad debt expense of $1,416 million in 2015 and $1,032 million in 2014. Required: 1. Determine the amount of actual bad debt write-offs made during 2015. 2. Determine the amount of cash collected from customers during 2015. 3. Compute the receivables turnover ratio for 2015. (Round your answer to 2 decimal places.) 1. Write-offs during 2015 2. Cash collection during 2015 3. Accounts receivable turnover ratio