Does the movement of air masses make weather prediction harder or better?

Ling listed all of the factors of a mystery number: 1,2,4,8,16,32 what is the mystery number?

Me with geometry ! in this figure, bc is a perpendicular bisects of kj. dm is the angle bisects of bdj. what is the measure of bdm? •60° •90° •30° •45°

What is the equation of the line that is parallel to the line with the equation y= -3/4x +1 and passes through the point (12,-12)