Approximately, what percentage of smartphone owners in america uses their mobile devices to access social media platforms? 40% 50% 60% 70%i just guessed and got it wrong and it showed me the correct answer and its a.40%  hope i someone.

Be sure to answer all parts. synthesize the following compound from benzene. a. b. c. d. e. f. reaction [1] conditions: a b c d e f reaction [1] product: draw structure reaction [2] conditions: a b c d e f reaction [2] product: draw structure reaction [3] conditions: a b c d e f reaction [3] product: