Below are some selected ebooks that will give you explanations and practice problems for MATH 0090 concepts. You can work through these books on your computer or another device any time you want to practice.
Below are two library databases with very helpful practice tests, tutorials, and more ebooks for adult math.
If you are having trouble with a concept, look for different explanations of it. The more ways you hear something explained, the more likely you are to find an explanation that clicks for you. There are a number of websites that offer math help.