## AGummiBear55 2 years ago PLEASE HELP!! Lucas opened a savings account 20 years ago with a deposit of \$3,815.24. The account has an interest rate of 3.3% compounded quarterly. How much interest has Lucas earned?

1. srw1496

Did they give you a formula for this?

2. AGummiBear55

That's what I kinda need help with. I think it's something like I=Prt, but I'm probably wrong. I'm really confused on what formula to use. :/

3. srw1496

I think that's the right formula. Sorry it took me so long my computer spazzed out lol. There's also another formula for more complicated problems but I don't know that one, @hba might though.

4. hba

You messaged after 10 min,Wow.

5. srw1496

I already apologized for answering late, my computer had a spazz attack and I had to restart it, anyway that's not the point here.

6. AGummiBear55

I think I got the answer... I used the A=P(1+r/n)^nt formula and got the answer 3,546.50. Is that right, you think?

7. AGummiBear55

And it's okay, my computer spazzes all the time... lol. I know how it is. (:

8. srw1496

Well is it one of your choices or does this question have choices? Haha yeah I don't know what it was doing lol

9. AGummiBear55

Yeah, it is one of my choices, so I'm pretty sure it's the right answer. lol. Thanks for the help anyway. (:

10. srw1496

Haha well I tried (: good luck !

11. hba

Well,You did it Congo. Can i have a cookie ?

12. AGummiBear55

lol... thanks. && Cookie? :/ whaa??

13. hba

I am the Cookie monster :)

14. AGummiBear55

lol.. (;

15. hba