Two, but it could be three. Integers ending in zero are an ambiguous case.
To express 307.82 to two significant figures, you round it to the nearest value that reflects the first two non-zero digits. The first two significant figures are 3 and 0, so rounding 307.82 gives you 310. Therefore, 307.82 to two significant figures is 310.
How many significant figures are in 20.8
3 significant figures.
4 significant figures.
3 significant figures.
How many significant figures are in 20.8
There are 3 significant figures in 94.2.
5 significant figures.
There are four significant figures in 0.1111.
4 significant figures.
3 significant figures.
3 significant figures.
4 significant figures.
4 significant figures.
4 significant figures.
How many significant figures are in 13001kg
It has five significant figures.