His suit case is 7,938 cubic inches i think
If two polygons are similar, then the ratio of a side-length of one of them
to the length of the corresponding side of the other one is the same number
for every pair of sides. All you need to do is find one pair of corresponding
sides, then find the ratio of their lengths, and there's your scale factor.
You are most likely to pick up a red because the quantity is more and a blue marble can be anywhere