2 ⋅ 7 ⋅ 9 ⋅ 3 = 378 c m 3
7 * 9 * 3 * 3 = 378 :)
The combined volume of two identical rectangular prisms with dimensions 7 cm x 9 cm x 3 cm is 126 cubic centimeters. This is calculated by first finding the volume of one prism and then doubling it. The volume of a single prism is 63 cubic centimeters, so the total is 126 cm³.
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