Answer:
63
Step-by-step explanation:
The formula for volume of a box is length×width×height = volume
So you would multiply 3.5×6×3=63
1.) Let's say that the circle on the graph below represents x. The arrow is pointing to all the numbers greater than x, which happens to be on -2. If it points right, this means that x can equal to any number greater than -2. So your answer is x > -2.
2.) For inequalities such as these, you can simplify just like what you do for normal equations. Let's isolate x.

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---> 
3.) 
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---> 
4.) 
--> 
---> 
----> 
-----> 
5.) 
--> 
---> 
----> 
-----> 
By iteratively substituting, we have



and the pattern continues down to the first term
,



Recall the formulas


It follows that


