Problem
Consider investing over time, so as your salary goes up, you invest more each month. For 10 years straight, you invest $100 per month, then you invest $300 per month for 10 years, and end with $500 per month for 10 years. Over the full 30 years, you earn 4.8% annual interest compounded monthly.
i. Determine the balance at the end of the 30 years.
ii. Determine the amount of money you invested total.
iii. Find the amount of interest earned over the 30 years.