question 4
this is my first post, and I want to say that this forum has been immensely helpful for me, so plz be gentle with me.
for number 4, i believe if you apply burnside's lemma, you should get 24 possibilities.
specifically, you have 1/4(3^4 + 3 + 3^2 + 3) = 24
peterruse solution is...