what is a rational number provide an example of a rational number and explain why it is considered rational

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

3x = 729 solve for x plz . it's urgent. will mark

What is the equation for the line that passes through the points (-6,4) and (-2,9) answer in point slope form