The following are the ages (years) of 5 people in a room: 18, 21, 12, 12, 23 A person enters the room. The mean age of the 6 people is now 22. What is the age of the person who entered the room?

Arectangular exercise mat has a perimeter of 36 feet the length of the mat is twich the width writeand solve an equation to determine the length in feet. of the mat then find the area in square feet of the mart

If a baby uses 15 diapers in 2 days how many diapers will the baby use in a year

Assume that there is a 11% rate of disk drive failure in a year. a. if all your computer data is stored on a hard disk drive with a copy stored on a second hard disk drive, what is the probability that during a year, you can avoid catastrophe with at least one working drive? b. if copies of all your computer data are stored on four independent hard disk drives, what is the probability that during a year, you can avoid catastrophe with at least one working drive?