Which symbol is used to indicate that a formula may contain an error? A. green triangle in upper-left corner of cell
B. an orange circle below the formula result
C. green triangle with question mark inside
D. a wavy purple arrow above the formula result

Css3 is the latest evolution of the cascading style sheets language and aims at extending css2.1. it brings a lot of new features and additions, like rounded corners, shadows, gradients, transitions or animations, as well as new layouts like multi-columns, flexible box or grid layouts.credits to medium for making this answer credits to google for copying this answercredits to me for putting this answer on your question

Good job, jason. he's more successful than i'll ever be loolll

No, the only way you can mute the notifications is to disable notification sounds in the settings, the settings of your phone of