Answer:

Step-by-step explanation:
Let
x ----> the average depth of the resulting layers of ash and rock
we know that
To find out the average depth, divide the cubic kilometers of molten rock by the area where all the ejected material fell.
so

Convert to meters
Remember that

so

Convert to mixed number

Answer:
It should be option B
Step-by-step explanation:
2 = $1.45
1 = $0.725
anything to ask please pm me
8 is the x intercept and -2 is the y