CPM Homework Help : CC1MN Problem 3-131

The following representations have been drawn to represent portions of a 100% block. Write each of the portions in at least two different forms.

Hint (a):
How many blocks are filled in? How could you represent this in writing?
Answer (a):
Since $5$ blocks out of $100$ are filled in, it can be expressed in two ways.
$\frac{5}{100}\text{ or } 0.05$

Hint (b):
Use part (a) as a guide, because this problem is very similar.
More Help (b):
How many blocks are filled in? What portion of the whole does this represent?