$2 per notebook would be the correct answer
This is a simple subtraction problem, but since you are in Elementary School, I will help you out.
Subtract $4,190.67 by $3,655.11 (remember, the bigger number should come first)
4,190.67
<span>-3,655.11
</span> ...56
When a small number is on top of a bigger number, borrow 1 number from the number next to it (in this case, 0 is smaller than 5, so you must borrow 1 number from 9, making it to 8), then add the small number by 10 (0+0=10)
<span>Then we continue...
</span> 4,190.67
<span>-3,655.11
</span> 35.56
Do the same thing with 4 and 1.
4,190.67
<u>-3,655.11</u>
535.56
<em><u>Answer: $535.56</u></em>
Percent means parts out of 100
x/100=x%
4/5=x%
4/5=x/100
times 100 oth sides
400/5=x
80=x
80% do
100-do=do not have
100-80=20
answer is 20%