24.33 is the answer to this question
It is known that 6 things can get arranged in 720 ways, let's look at the math of this.
There are six things so:
1×2
2×3
6×4
24×5
120×6
720
Bluegill
3/5 × 1100
660
catfish
70% × (1100-660)
70% × 440
308
so not catfish or blue gill
1100 - (660 + 308) = 132
5.50 because anything after a number that is zero means nothing
320 guests / 5 servings per can = 64 cans required