Can anyone help me with this asap. thank you in advance.

Which of the following points is collinear with (-2,1) and (0,3)

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

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?