Since the string has already two 2, then we will compute the whole number of strings whose length is 4, over the alphabet {0,1}:
There is then 16 such strings.
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I don’t know the answer i just want points
64 FL oz
1 pint is 12 fl oz.
Since you're looking for 4 pints, you multiply everything by 4.
1 x 4 = 4
12 x 4 = 64