They can be 1230 or 0.0123
3 of them.
How many significant figures are in 20.8
6040 has 3 significant figures.
It is then 3650 to 3 significant figures
30.5
No: 0.0451 has exactly 3 significant figures.
72.5 has exactly 3 sig figs.
They can be 1230 or 0.0123
72.5 has exactly three sig figs.
3 of them.
0.0451. 450 has two significant figures, 32.10 and 370.0 each have four.
3
A, B and C.
All of them.
3. But it is also not exactly wrong to say that there are 2 significant figures.
The number 0.0950 has 3 significant figures. Those are the 9, 5, and final 0. The first two zeros on the left, are not significant.