What is the expanded notation of 0.19? A) (1 × 10) + (9 × 1 100 ) B) (1 × 1 10 ) + (9 × 100) C) (1 × 1 10 ) + (9 × 1 100 ) D) (1 × 1 100 ) + (9 × 1 1000 )

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