9. How many significant figures are there in the number 0.0001372? A) 7
B) 3
C) 8
D) 4
E) 0

D. 4

Explanation:

For numbers with decimal point, we should start counting from the first number that non-zero from the left.

0.0001372

We start counting from 1, since it is the first non-zero number

1, 3, 7, 2

There are in total 4 significant figures

Hope this helps!! :)

Please let me know if you have any question or need further explanation

there all right good

explanation:

i believe you are right for all except the 3rd ( look at sqdancefan his answer is much better)