In the formula, =1+(2-3)+5/6-6^2, what will Excel evaluate second?

To change a file to Read-only, display the file list in File Explorer, right-click on the file name, and then click ________

A) Rename B) Properties C) Create shortcut D) Delete

Krug says that if you have room in your head for only one usability principle, it should be ___________________.

Fill in the blank(s) with the appropriate word(s).