Hey there! :)
To find the volume of a prism, we multiply the length, width, and height together. This is (4 1/2)(8 1/2)(3), which we can convert to improper fractions and get: (9/2)(17/2)(3). When we multiply this together, we get 459/4, which as a mixed number is 114 3/4. Therefore, the answer is C.
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Hope this helps!
==jding713==