math
posted by Jordan .
A rectangular prism with a base area of 38 sq in & height of 9 in is filled to the top with water. The water is poured into fish tank that is 21 in by 8 in and is 10 in tall. How high is the water in the fish tank?

38 * 9 = 342 cubic inches
21 * 8 * x = 342
Solve for x.
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