In excel what does sidney need to consider when creating formulas

Mariah was working on a multimedia presentation that included both video and audio files. the file was huge, and she wanted to send it to her coworker in another office. she needed to reduce the size of the file so that it could be transmitted faster. the utility she used to do this was

Which of these is most responsible for differences between the twentieth century to the twenty-first century?

Who needs to approve a change before it is initiated? (select two.) -change board -client or end user -ceo -personnel manager -project manager