Here's a picture of my notes on how to do the problems involving interest rates. I hope it helps some of you!
I really struggled with this but once I figured it out it was really gratifying. If I don't get something, it helps me to summarize the text and write down steps that I can refer to later. Those steps are here!
If you have any questions, you can ask me (I would link a math teacher as well just in case I don't get back to you) and I(/we) can try to help! GOOD LUCK!
Be sure to follow the steps on the left side of the page and try the alternate method. Try to utilize the examples on the page as well.
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