28 points! me!

(explain your answer so i know you didn't guess) you so so so much!

Anyone know? will mark brainliest if you're correct!

Which undefined geometric term is described as a location on a coordinate plane that is designed by an ordered pair (x,y) ?

The administrator of a large assisted living facility wanted to know the average age of the residents living at the facility. he randomly selected 12 residents and determined their age, listed here: 80, 65, 75, 83, 68, 73, 88, 79, 94, 72, 79, 68 what's the average age of the sample of residents? a. 79 years old b. 68 years old c. 75 years old d. 77 years old