When opening your Roth IRA investing account , your financial advisor gives you two options.
Option1 you can have the Roth IRA use compounding interest overtime
Option 2 you can have the Roth IRA use simple interest overtime over the course of 30 years you will have your Roth IRA open, which option will be better for you

Computing equivalent units is especially important for: (a) goods that take a relatively short time to produce, such as plastic bottles. (b) goods with sustainability implications in their production processes. (c) goods that are started and completed during the same period. (d) goods that take a long time to produce, such as airplanes.