Answer
(a) 2 significant digits
(b) 2 significant digits
(c) 2 significant digits
Work Step by Step
(a) The zeros before the digits 2 and 8 are not significant because they are just placeholders.
Thus. the number has 2 significant digits
(b) The 0 after the digits 2 and 8 is not significant because it is just a place value holder.
Thus, the number has 2 significant digits.
(c) The zeros after the digits 2 and 8 are not significant because it is just a place value holder.
Thus, the number has 2 significant digits.
