For the data set 2.5, 6.5, 9, 19, 20, 2.5 what is the mean absolute deviation

Find the sum of the measure of the interior angles of a polygon of 9 sides ; of 32 sides

The coordinates of a, b, and c in the diagram are a(p,4), b(6,1), and c(9,q). which equation correctly relates p and q? hint: since is perpendicular to , the slope of × the slope of = -1. a. p - q = 7 b. q - p = 7 c. -q - p = 7 d. p + q = 7

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)