Final Answer:
Hannah would earn $360 in interest after 4 years.
Step-by-step explanation:
Simple interest is calculated using the following formula:
I = PRT
Where:
I is the interest earned
P is the principal (the amount of money deposited)
R is the interest rate (expressed as a decimal)
T is the time (in years)
In this case, P = $600, R = 15%, and T = 4 years. Plugging these values into the formula, we get:
I = (600)(0.15)(4) = $360
Therefore, Hannah would earn $360 in interest after 4 years.