The general size of a brochure is 8.5x11 when open or flat. Typically they are broken into three segments though!
Let's say for example you have a toddler, or a pet. Let's say a cat. If the ctrl+alt+delete wasn't there. It would go straight to entering the password. Now let's say your child or pet likes to press the keys for a while. If they manage to press enter and enter the incorrect password. Eventually it will lock up your computer.
To make things faster, instead of using your mouse to navigate multiple Microsoft Excel sheets that are in the same document, you can use a shortcut instead. This is what Sally will be doing to copy data from her first worksheet to the fifth.
The shortcut function that Sally needs to use to achieve this is (A) Ctrl and Page Up or Page Down Keys.