The original recipe called for 3/8 cup of blueberries what is the ratio of blueberries to butter in the recipe? how many cups of blueberries are needed in the new enlarged mixture? i'll mark the brainlest!!!

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