Answer:
Interest will Eli earn over 3 years is $24 .
Explanation:
Formula
![Simple\ interest = (Principle* Rate* Time)/(100)](https://img.qammunity.org/2020/formulas/mathematics/high-school/7iu5l9nniquxx3iijs9k6kc10wbb05b4sx.png)
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 = (200* 4* 3)/(100)](https://img.qammunity.org/2020/formulas/mathematics/high-school/n9p5oar9tdj4dxe31uin7sjbl5xwyd0299.png)
![Simple\ interest = (2400)/(100)](https://img.qammunity.org/2020/formulas/mathematics/high-school/6fdmki27bsufjqe99pvetjrjwpjl0e1kza.png)
Simple interest = $24
Therefore interest will Eli earn over 3 years is $24 .