45.01 has four significant figures.
It is: 4.501*10^3 m
3 significant figures.
3 significant figures.
3 significant figures.
3 significant figures.
3 significant figures.
Three. All nonzero numbers are significant, and any zeros in between significant numbers are significant.
Three significant figures.3 of them.
It has 3 significant figures. (1,5,8).
2310 has 3 significant figures.
It has 3 significant digits.
4780 has 3 significant figures.