Answer:
12,662
Step-by-step explanation:
so first you divide 75,972 by 3 because 1/3 are science. That gives you 25,324 are science. next you subtract 25,324 from 75,972 to see how many books you have left which equals to 50,648. now you need to find 75% of 50,648 by multiplying 50,648 by 0.75 which gives you 37,986. This means there are 25,324 science books and 37,986 buisness books. to find math you now subtract buisness and science from the total amount of books which leaves you with 12,662
