Estimate the instantaneous rate of change of daily receipts 9 weeks after the opening day. Round to four decimal places.

Which of the following best explains why online retail companies have an advantage over regular stores? a. their employees make less money because they mostly perform unskilled tasks. b. they are able to keep distribution costs low by negotiating deals with shipping companies. c. their transactions require expensive state-of-the-art technological devices. d. they have a larger number of potential customers because people anywhere can buy from them.