flip over the line, then slide up
Answer:
MN = 6
This is because the shapes are dialations of each other
So PO and ML are the same side of the triangles but ML is dialated by a factor of 3.5 so that applies to the whole shape. So 21/3.5 = 6
LxWxH
4x4x4= 64 cubic inches
So the answer is 4 cubes
The 5 is in the hundred thousands place.
Hope this helps,
♥<em>A.W.E.</em><u><em>S.W.A.N.</em></u>♥