Final answer:
To calculate the interest earned, use the formula Interest = Principal x Rate x Time. Dominica earned $420 in interest on her $2000 deposit over 3 years.
Step-by-step explanation:
To calculate the interest earned, we need to use the formula:
Interest = Principal imes Rate imes Time
Given:
Principal = $2000
Rate = 7% = 0.07
Time = 3 years
Plugging in the given values, we get:
Interest = $2000 imes 0.07 imes 3 = $420
Therefore, Dominica earned $420 in interest on her $2000 deposit over 3 years.