All the digits are significant, so there are 5 significant digits.
Five. All nonzero digits are significant and zeros in between significant digits are always significant.
Five. All nonzero digits are significant and zeros in between significant digits are always significant.
5 has 1 sig fig.
3 to 5 digits
9
1
There are 90000 5-digit numbers.
Assuming that the last two digits are indicators of precision, there are 5 significant digits.
5
5
5.