we the information given in the question, we are to find Simple Interest.
firstly let's kno the formular for simple interest.
Simple Interest (SI) = PRT/100
Where P is the Principal
R is the rate
T is the time
P = $2500
R = 1.5
T = 3years
so substituting into the formular:
SI = 2500 x 1.5 x 3
100
SI = 2500 x 4.5
100
SI = 11250/100
SI = 112.5
Therefore, the interest that will earn is $112.5