Marianna represented several percents as portions of 100 in the pictures below.
A 10 by 10 block of 100 where 8 columns of 10 are shaded.

A 10 by 10 block of 100 where the first row, and 2 and a half squares of the second row are shaded.

A 10 by 10 block of 100 where 1 row of 10 is shaded.

A.Write the percent represented in each picture.

B.Write the portion represented in each picture as a fraction in at least two different ways.