ILL GIVE BRAINLIEST TO FIRST ANSWER David is adopting an iOS app from a non-retina screen to a retina screen. The app currently works at a pixel density of 150DPI, what density should it be on a retina screen to maintain its apparent size?

Give an example of a case where a two-way handshake to establish a connection could leave one side of the connection live while the other side does not believe there is a connection.

Match the personality traits with their description

Which action is good business etiquette? a. switching your cell phone off before you enter a meeting b. keeping your cell phone on low volume before you enter a meeting c. setting a pleasant ring tone on your cell phone before you enter a meeting d. setting a standard ringtone on your cell phone before you enter a meeting