Solutions
We know that Monique opens a savings account with $500. the simple interest rate is 4%, calculated annually.
Our first step to solve this problem will be to convert 4% to decimal.
4% = 0.04
500 * 0.04 = how much she will earn in a year
500 * 0.04 = 20
Monique will earn $20 per year.
Since we are looking at how much money will she have in her account after 30 years, we have to multiply 20 by 30.
20 * 30 = 600.
Add everything up
600 + 500 is 1100.