She makes total 3 waffles.
Step-by-step explanation
Suppose, the number of waffles she makes is

It takes 1 pound of flour to make 2 waffles. That means, for making 1 waffles she needs
pound of flour.
So, the amount of flour needed to make
waffles
pound.
Now, 1 pound of flour is used for every 8 eggs. So,
pound of flour is used for
eggs.
Given that, she uses a total of 12 eggs. So, the equation will be.....

So, she makes total 3 waffles.