Hi there! :)
The volume of a prism is (length)(height)(width). We already know the length and width, so we can let the height be h, and set up an equation as follows:
(4)(8)(h) = 192;
32h = 192;
Dividing by 32 on both sides, we get that the height is 6 inches.
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Hope this helps!
==jding713==