1) The document discusses a student project comparing arithmetic and geometric sequences and providing real-life examples. 2) For arithmetic, the example used is a car leasing contract with constant $100 monthly payments for a year. 3) For geometry, the example shows appreciation of a vintage car's value over 5 years, forming a geometric sequence.

1. By: Anthony Bradley

9. Year Appreciation price ($) 2012 50,000 2013 65,000 2014 84,500 2015 109,850 2016 142,805 2017 185,646.5 2018 241,340.4