Use the formula for Interest: P = $250 r = 7.2% Y= 5 A = ?
Compound interest ot simple interest.
Simple interest
I=Prt
$${\mathtt{I}} = {\mathtt{250}}{\mathtt{\,\times\,}}{\mathtt{0.072}}{\mathtt{\,\times\,}}{\mathtt{5}} \Rightarrow {\mathtt{I}} = {\mathtt{90}}$$
Interest = $90