Which of the following is an example of a method that can be used to model 45%? Select all that apply.
A) a 10 x 10 grid with 40 shaded squares
B) a 10 x 10 grid with 45 shaded squares
C) a bar divided into 10 sections with 4 shaded
D) a bar divided into 20 sections with 5 shaded
DE) a bar divided into 20 sections with 9 shaded