Question

Can someone please help ​

Answer 1

It looks like the 42 refers to the area of the base. If so, then we multiply that with the height 6 to get 42*6 = 252

So the volume of this rectangular prism is 252 cubic cm.

It seems strange that your teacher wrote "volume (in cm)" instead of "volume (in cm^3)" or "volume (in cubic cm)". Saying just "cm" without the "cubic" part is incorrect as centimeters alone are a linear unit, not volumetric.

Answer 2

216
`cm^(3)`

Explanation:

From what I could tell, the model is a cube with a side length of 6. That means all sides have a length of 6 cm. You just have to do 6*6*6= 216
`cm^(3)`

Hope this helps!! I'm not sure why there is a 42 at the bottom though.