The graph shows the ratio of pencils to
pens sold at the school bookstore.
Pencil and
Pen Sales
y
Number of Pens
20
18
16
14
12
10
8
6
4
2
X
0
2 4 6 8 10 12 14 16 18 20
Number of Pencils
If the bookstore sells 12 pencils, what is
the ratio of pencils to pens sold written as
a fraction?