Answer:
34
Step-by-step explanation:
A projectile is an object that is given an initial velocity, and is acted on by gravity. The path the object follows is determined by these effects (ignoring are resistance). The path is the object's trajectory. The trajectory has horizontal (x) and vertical (y) components.
Th z-score is given by:
z=(x-μ)/σ
where:
μ-mean
σ-standard deviation
hence:
z=(240-200)/20
z=2
The average monthly change is -36 every 12 months i think ♀️