Which Part of the Angle is the Vertex?

D  Point A

Step-by-step explanation:

The vertex is where the two sides of the angles come together

A is the vertex of the angle

an advantage of the standard deviation is that it increases as the dispersion of the data increases. e. the interquartile range is preferred when the data are not skewed or no have outliers. an advantage of the standard deviation is that it uses all the observations in its computation.

4x and 6y

im not sure though