let
A--------> larger thermos with radius 3 in
B-------> smaller thermos with radius 2 in
we know that
scale factor=radius larger thermos/radius smaller thermos
scale factor=3/2----> 1.5
volume larger thermos=[scale factor]³*volume smaller thermos
volume larger thermos=[1.5]³*10 f oz-----> 3.375*10-----> 33.75 f oz----> 34 f oz
the answer is
34 f oz
