Which cell formatting is  most likely  to use $?

Asalesman at a high end computer security firm want to sell you a proactive cover for your passport, which contains an rfid tag inside storing your sensitive information. the salesperson's solution cost only $79.99 and protects your passport from being read via radio waves while it is in your pocket. explain how you can achieve the same thing under $3.00

When you collaborate or meet with a person or group online, it is called

How do we use the sumif formula (when dealing with different formats) ?