I am confident that if you have made it this far into unit 1, you have for sure understood the difference between arithmetic and geometric series.
An infinite geometric series can be used for word problems and solved using formulas.
Here are some videos that will definitely help you with your homework questions from your workbook!
How to determine if a geometric series converges or diverges
Find the sum of the infinite geometric series
How to find the rational number represented by the repeating decimal
Word problems
If you have any questions, feel free to leave them in the comment box down below!