Answer:

Step-by-step explanation:
we know that
A relationship between two variables, x, and y, represent a direct variation if it can be expressed in the form
or 
In this problem we have
y=18 when x=2
Find the value of the constant of proportionality k
----> 
therefore
The equation is equal to

Answer: -9x-1y-9/
Step-by-step explanation:
C. 37
It is the lower quartile marked on the box-and-whisker plot and is the median of all data below the median
Answer:
C
Step-by-step explanation:

ρ - density, m - mass, V - volume
Liquid A:

Liquid B:

Liquid C:

The density of liquid C is approximately 0.96 g/cm³.