plz help:)

Provide two to three paragraph responses to the following chapter 4 self-studly questions and submit your responses in the week 4 engage link 1. During 2010, the Apple. Phone replaced RIM's Blackberry as global market leader in smartphones By 2017, the world market for smartphones was dominafed by Apple and Google's Android: RiM and Microsoft each held market shares of less than 01%. Why did Google succeed in this market while Microsoft and RIM failed? 2 HP, Canon, Epson, and other manufacturers of inkjet printers make most of their profits from their ink cartnidges Why are cartridges more profitable than printers? Would the situation be different 1 if cartridges were manufactured by different firms from those which make printers? 2. if cartridges were interchangeable between different printers? 3 if patent and copyright restricfions did not prevent other firms from supplying ink cartridges that could be used in the leading brands of printer