Four significant figures.
Two. The first two zeros are just placeholders.
an infinite number of numbers
The figure 18.03 has a total of four significant numbers
There are 1007 verses.
One significant figure.
3
Two. The first two zeros are just placeholders.
231.57 has five significant figures/numbers. All the numbers in 231.57 are significant.
.020 has two significant figures: 2 and 0 A significant figure are digits that contain meaning contributing to precision. All numbers are considered meaningful except for zero, unless zero is between two other numbers or tailing non zero numbers where a decimal is present.
an infinite number of numbers
The figure 18.03 has a total of four significant numbers
There are 1007 verses.
16.78333 hours
4 significant figures.
4 significant figures.
5 significant figures.
All of them are significant.