Help help help chemistry homework question?

Question

a piece of wood has a labeled length value of 76.49 cm. You measure its length three times and record the following data: 76.48 cm, 76.47 cm, and 76.59 cm. How many significant figures do these measurements have.

Answer 1

4.

Answer 2

4..

non zeros are always significant digits.

Answer 3

They all have 4. Usually the number with the least amount of digits would tell you how many sig. figs. there are but they all have 4 digits so it's 4.