Best Math books or apps for adults to learn math from the beginning
Just create an account at KhanAcademy.org, this site is so amazing that it'll guide you from the very beggining to calculus and multivariable calculus (if you want to). It's totally free, and it will change your life. There are more than 5.000 videos. I used it and I aproove (i've watched more than 1000 yet lol). Also, they have exercises for all videos.
I've heard good things about Khan Academy. Never used it though. Also, Google is cool for finding help, since there are usually videos on Youtube to explain stuff.