what is the difference between a normal mouse and trackball? What do you think.

How to launch an app: steps to be successful? launching an app is a great idea, but it’s not that easy as we supposed to think. the majority of mobile applications don’t generate revenue because companies aren’t ready to be competitive. referring to our experience in successfully building and launching apps we hope to you omit these difficulties. we are going to talk about ideas, marketing, testing your product, its development, distribution and support. you will learn 8 product launch stages to succeed.

What part of the interface displays the external references contained in a selected cell? the status bar the review tab the scroll bar the formula bar

Hazel has just finished adding pictures to her holiday newsletter. she decides to crop an image. what is cropping an image?