Answer:
Interest will Eli earn over 3 years is $24 .
Explanation:
Formula

As given
Eli won $200 in a spelling contest.
His mother opened a savings account for him so he could save for a laptop computer.
f the bank offers a simple annual interest rate of 4%.
Principle= $200
Rate = 4%
Time = 3 years
Putting all the values in the formula


Simple interest = $24
Therefore interest will Eli earn over 3 years is $24 .