Plug in method?
i am trying to use the plug in method and i did that but then was not sure how to solve the problem after plugging in numbers.

Two lines parallel to a third line are parallel to each other. always sometimes or never

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

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way