Question

$1348 deposited at an interest rate of 2.5% for 18 months

Answer 1

606.6$ in total Interest= PrinciplexRatexTime

Answer 2

I=PRT                      price/principle amount×rate×time in years
 =1348×0.025×1.5    (18 months=1.5 years)
 =$50.55
original + intyerest
1348+50.55
$1398.55