For 'Brain Rules (Updated and Expanded)', identify the cheapest digital format (eBook or audiobook) and its price. Also, for 'Brain Rules for Baby', determine if an audiobook is available and, if so, what is its total length? Provide all findings.
Navigate to brainrules.net. Locate the 'Brain Rules (Updated and Expanded)' section. Click the 'Audio' link for 'Brain Rules (Updated and Expanded)' to find its price. Go back to brainrules.net. Click the 'eBook' link for 'Brain Rules (Updated and Expanded)' to find its price. Compare the prices of the audiobook and eBook for 'Brain Rules (Updated and Expanded)' to identify the cheapest digital format and its price. Go back to brainrules.net. Locate the 'Brain Rules for Baby' section. Click the 'Audio' link for 'Brain Rules for Baby' to confirm availability and find its length. State the cheapest digital format and price for 'Brain Rules (Updated and Expanded)', and the availability and length of the 'Brain Rules for Baby' audiobook.
Identify the cheapest digital format for 'Brain Rules (Updated and Expanded)' as the audiobook. State the price of the 'Brain Rules (Updated and Expanded)' audiobook as $4.99. Confirm that an audiobook is available for 'Brain Rules for Baby'. State the length of the 'Brain Rules for Baby' audiobook as 9 hours and 26 minutes.