Answer:
C. 189
Step-by-step explanation:
We need to find the volume of both the cubes and rectangular prism:
V=L*W*H
Volume of cubes: .5 times .5 times .5 = .125
Volume of rectangular prism: 4.5 times 3.5 times 1.5= 23.625
They are both measured with inches, so we do not need to covert.
To find out how many cubes fit into the box, we use (volume of rectangular prism/ volume of cubes)
SO: 23.625/.125= 189