What is the height of our classroom door is it Statistical or non statistical

If f(x) =3x-2 and g(x) =2x+1 fins (f+ g) (x)

Which is f(5) for the function –2x2 + 2x - 3?

Find the equation of a line that is perpendicular to line g that contains (p, q). coordinate plane with line g that passes through the points negative 3 comma 6 and 0 comma 5 3x − y = 3p − q 3x + y = q − 3p x − y = p − q x + y = q − p