Answer:
-625
Step-by-step explanation:
I think so..
1/3
2 of the books are math books and there are 6 books. This is 2/6. Now, divide both sides of the fraction by 2 to simplify it. This gives you a final answer of 1/3.
The rule is "add 5, add 10, add 20" and the rule keeps doubling.
