5(x + 3) + 3(y + 1)
Please answer! I will mark brainliest to the person that makes more sense!!

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

Which expression is not a polynomial?

Create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1.