Slope formula: 
Slope of line one: 
Slope of line two: 
Slope of line three: 
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Answer:
B. 
Step-by-step explanation:
DeMoivre's theorem:
If the complex number
then for natural number n

In your case,
and you have to evaluate 
By DeMoivre's theorem,

All you have to do is multiply 2.3 by 13 together to get 29.9. Then you would subtract that by the total volume which would get 107.64. That's the width.
Answer:
I am on the same one and I think it is C
Step-by-step explanation:
I am not entirely positive but I am leaning towards this one.