First you would want to start by Putting the 9% over 100% and then put the 34,891 under x then cross multiply that will get you 100x= 314019. Divide the314019 by 100 and you should get 3140.19. that is the interest for 1 year and it is asking for 3 so you will need to times 3140.19 by 3. You
should get 9420.57 that is his interest for 3 years!