Answer:
Remember that the volume of a cube is: a³, or that number, three times!
This means that each side, should be 4cm.
Why? It's because, now that we know the formula, 4x4 is equal to 16, and then 16x4 is equal to 64! :D
To buy expensive machinery
America's view in the Vietnam was fear. Fear drove them to participate in the war. Why fear? They were afraid Vietnam would become communist because if they became communist they would support or have the support from the Soviets. If this were to happen Vietnam could've became a missile launching spot for the soviets if America wouldn't have participated.
It's my best explanation from what I remember and from what I think. Hope it's helpful to you.
