EXPLANATION
Let's see the facts:
Austin and Carly deposit: $500
Interest rate= 1%
Compounding period = monthly
Total number of years = 2
Given the Compounding Interest Rate formula:

n is the compounding period
t is the number of years
r is te interest rate in decimal form
Replacing the given values will give us:

Solving the power:


Answer: Austin and Carly will be able to spend $510.09.