Yes he can, because when the area of the top of the box is divided by 3/4, you get a whole number, meaning there would be no tile pieces left over, which means that he could cover the top. SEE PICTURE FOR WORK.
RB: $51.10/14=$3.65 per lb
Turkey: $42.60/12=$3.55 per lb
Ham: $3.80 per lb
Answer: Turkey is the LEAST expensive
486/6=81
Square root 81 = one side length = 9m
volume = 9^3 = 729