Answer: for the first it is not direct varition while for the second one it i s
Step-by-step explanation:
It's the first choice.Correlation that implies causation
Answer:
The surface area of the gift box that Kira decorates is 
Step-by-step explanation:
see the attached figure to better understand the problem
we know that
A cube has six square faces
The surface area of a cube is equal to the area of the six squares faces

where
b is the length side of a cube
In this problem we have

substitute


PH = - log [H+]
pH = - log (0.000316227)
pH = 3.5