Question 399408
I need to find the height of a storage unit that is 5 ft wide by 8 feet long with a square footage of 40 feet. I thought v=lwh would work but I'm wrong. Thanks for the help.
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v = lwh 
is indeed correct!
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However, for you to solve for the height, you need to know the volume of the storage unit.  The area (40 sq ft) doesn't help because you could have figured that out by multiplying the given width and length of the unit.