The following are the ages (years) of 5 people in a room: 12
,

22
,

21
,

13
,

14

A person enters the room.
The mean age of the 6 people is now 21.
What is the age of the person who entered the room?

An airport in death valley is 60 feet below sea level, and an airplane is flying 2,000 feet above sea level. how many feet must the plane descend in order to land? a. 2060 b. 2000 feet c. 1940 feet d. 1880 feet e.1400 feet will mark as brainliest

Why did the ice arena get so hot after the big game (this is math related google it to find the paper

Adriana sold 50 shares of a company’s stock through a broker. the price per share on that day was $22.98. the broker charged her a 0.75% commission. what was adriana’s real return after deducting the broker’s commission? a. $8.62 b. $229.80 c. $1,140.38 d. $1,149.00