27)How many significant figures do each of the following have?
a)50.01cm- 4 significant figures
b).00120cm- 3 significant figures
c)82,400cm- 3 significant figures
d)33 students- This has unlimited significant figures because the number of students can be counted exactly and is not measured
e)100.001cm- 6 significant figures
f)the product of a times b- 50.01cm(.00120cm)= 0.0600cm^2-3 significant figures
g)the sum of a and c- 50.01cm + 82,400cm= 82,450cm- 4 significant figures
