Answer:
6 Boxes
Explanation:
So, she has already sold 2/5 boxes of chocolate, so we just make 25 into 2/5.
5 x 5 = 25.
5 x 2 = 10.
So 2/5 = 10/25.
So, she sold 10 boxes the first week, and then 9 more the second week.
So, 10 + 9 = 19.
If she need to sell 25 boxes and has already sold 19, then you do :
25 - 19 = 6.
So, she needs to sell 6 more boxes!~~
Hope this helps!~ <3