There are many practice problems on this website. You can actually click and try to do the problems. There are instructions on the top of the page to inform how to use the website.
This is a West Texas A&M University website about logarithmic functions. It contains step-by-step help about solving and graphing logarithmic equations as well as sample problems.
This website provides information about what exponential functions are. It contains exponential function equations as well as graphs of exponential functions. It also explains compound interest.
This site deeply explain how to use the short cut of synthetic division. There are many examples that show step by step how to do the division. It also explains the remainder theorem.