If d is the midpoint of segment ab and ab = 15, what is ad? 7.5 15 22.5 30

This is so harddd! solve. 1 + 1 = solve 4 + 4 = solve 3 x 3

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 far could you drive on 50 gallons of gas