A measurement with one piece information (example:50 meters)

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

What value of x is in the solution set of 4x - 12 s 16 + 8x? -10 -9 -8 -7

How to use order of operation in 20 divide by 4 multiply 5 = 1