128 or 96
I dont know how many peices of pie there are per pie so I couldnt get an exact answer but if there was 8 slices a pie it would be 128 and if there were 6 there would be 96.
I also could have misunderstood this question and this could be way more complicated than the way I did but if i did it right then all you have to do is multiply.
16*8=128
16*6=96