She will have 65 jars left when all the boxes are full
<h3>Further explanation
</h3>
Algebraic expressions in mathematics are a combination of coefficients, numbers, variables, constants and arithmetic operations such as addition, subtraction, multiplication, and division
12 jars = 1 box
The number of jars that the boxes can hold :

Because there are 665 jars, there are still jars that cannot be entered in the box,

I think one of them is B I’m not sure for the other
They will sever her corpus callosum in which they are nerve fibers in the brain. They allow the hemispheres in the brain to be connected and severing this is a requirement to treat her epilepsy. This will reduce the symptoms that occurs in the contribution of epilepsy for they could be one of the factors contributing to those who people who has epilepsy.