Can someone help me please
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:
Step-by-step explanation:
the 4 one
<em>Hi there!</em>
<em>This should be easy,lol!</em>
<em>Answer:</em>
<em />
<em> (Decimal: -221.702503)</em>
<em />
<em> (Decimal: 280.592231)</em>
<em />
<em />
<em>Sorry bout the explanation thingy. Their really long -.-!</em>
<em>But the last one is short so i'll put it for you!</em>
<em>Step-by-step explanation:</em>
<em>∴!For the last one!∴</em>
<em />
<em />
<em>Simplifies to:</em>
<em />
<em />
<em />
<em> </em>
<em />
<em />
<em>Have a great day/night!</em>