Answer:
The number is 623.
Step-by-step explanation:

Vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
Step-by-step explanation:
let the no.s of apples in the one box be=x
then no.s of apples in the 2nd box =24-x
according to the question,
24-x+4=20
-x= 20-28
-x=-8
x= 8
no.s of apples in one box= 8
and no.s of apples in another box=24-8= 16
option C
14000+7x=35x (x being the number of books) solve for x and you have your answer. 14000=35x-7x=28x therefore x=14000/28=500 so he needs to sell 500 books before he breaks even.
Well the math you would do is 3346/7. That equals 478. As a fraction in simplest form you could write 478/1