A line (I suppose you mean of cocaine) is not of fixed size or length and therefore there is no conversion to any fixed unit of measure.
50 ounces = 50 ounces.
56 ounces
Um, there are 0.6 ounces in 0.6 ounces.
That is 839 ounces
2.64 ounces.
That is 41 ounces
32 ounces or Oz
1.9 ounces = ~1.732 troy ounces.
About 3.64583 troy ounces in four ounces.
There are 2.64 ounces in 2.64 liquid ounces.
There are 49.49 troy ounces in 54.3 ounces.
4 ounces plus 2 ounces is a total of 6 ounces.