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Answer:
Volume of rectangular prism = 81 feet³
Explanation:
Volume of rectangular prism is same as volume of cuboid
Length = 9 ft
Width = 4 ft
Height = 2 [tex] \frac{1}{4} [/tex] ft = [tex] \frac{9}{4} [/tex] ft
Volume of rectangular prism = Length × Width × Height
= 9 × 4 × [tex] \frac{9}{4} [/tex]
= 36 × [tex] \frac{9}{4} [/tex]
= [tex] \frac{324}{4} [/tex]
= 81 feet³