72.5 has exactly three sig figs.
No: 0.0451 has exactly 3 significant figures.
72.5 has exactly 3 sig figs.
They can be 1230 or 0.0123
101.01 has exactly five significant figures.
30.5
30.3 cm
It has four significant figures.
3. But it is also not exactly wrong to say that there are 2 significant figures.
How many significant figures are in 20.8
6040 has 3 significant figures.
10.34
There are 4 of them