4 of them.
Four
There are 2 significant figures in this measurement.
2 significant figures.
5
6 of them.
Three - all nonzero digits are significant.
There are 2 significant figures in this measurement.
2 significant figures.
2 significant figures.
2 of them.
5
6 of them.
5 of them.
Three.
There are two significant figures.
there are 5 significant figures
2 of them.
Three - all nonzero digits are significant.