Yes, that is correct.
99
No, two.
Two of them
There are 4 significant figures in 0.0032. Seems to be only 2 significant figures in this number.
There are two significant figures which are the two 2s.
The question is based on a fallacy. Volumes can be reported in any number of significant figures.
all the zeros are significant. there are four significant figures.
22.1 to two significant figures = 22
23.81558 to two significant figures is 24.
42 has two significant figures.
It's already there.
Two of them.