Which linear function represents the line given by the point-slope equation y+7=-2/7(x+6)

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

Could someone with number 1 and 2