What does central tendency mean

Peter is 25 years older than Chris. In 9 years, Peter will be twice as old as Chris is then. How old are peter and Chris.

Triplets Adam, Bruce, and Charlie enter a triathlon. If there are 9 competitors in the triathlon and medals are awarded for first, second, and third place, what is the probability that at least two of the triplets will win a medal?

A student runs 100 meters in 11 second s. What is the speed of the student

2 (x + 1) + 1 = 1 - 2 (x - 7)

Solve (4x^4-7-6x^2) (2x^2 4x^4 8)

Simplify this expression. (100 + 4z) 20

What is 4 (67x - 9) = 2x + 5 what is x?

Jana blows up the same number of balloons as jeremy, places half of them in the living room, and ties the rest to the mailbox. jeremy places some of his balloons in the kitchen and the rest in the dining room.

28 greater than r is less than 308.

N Monday 2⁄3 of the team practiced, Tuesday 7⁄8, Wednesday 1⁄2, and Thursday 3⁄4. On which day were the most team members present at practice? A. Wednesday B. Tuesday C. Thursday D. Monday