What is the greatest common factor of 60x4y?, 45x"y, and 75xºy?

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

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

Annabelle's homework is 75% it took her three hours how long should she estimate it will take her to complete her homework.