Which company invented the android operating system? apple nokia google microsoft'

Explain briefly why you cannot expect to find a previous version of every file with which you work.

How can a user open a blank presentation? 1.on the file menu, click new, and then click recent templates 2.on the file menu, click new, and then click blank presentation 3. on the view menu, click templates, and then click recent templates 4. on the view menu, click samples, and then click blank presentation

Nikki sent flyers in the mail to all houses within the city limits promoting her computer repair service what type of promotion is this and example of