3 significant figures.
Four of them.
3 significant figures.
5 significant figures.
6040 has 3 significant figures.
3 significant figures.
Four of them.
4 significant figures.
There are 4 significant figures in 0.0032. Seems to be only 2 significant figures in this number.
There are 3 significant figures in 94.2.
2 of them.
There are four significant figures in 0.1111.
3 significant figures.
4487 has four significant figures.
There are four significant figures in 0.005120.
0.0375 has three significant figures.
101330 has 6 significant figures.