The College Panda's ACT Math is the best math-specific book in my opinion.
Your best bet is college pandas book for math. It’s the best thing out there. Here’s a link as well as another for extra practice.
Here ya go:
https://www.amazon.com/College-Pandas-ACT-Math-Advanced/dp/0989496473/ref=sr_1_5?ie=UTF8&qid=1501080359&sr=8-5&keywords=college+panda