can someone please help me on this question

Glenn invested $18,000 at 5% interest compounded annually.

How much interest will Glenn earn in 3 years?

A.
$20,837.25

B.
$19,826.24

C.
$2837.25

D.
$2340.23

Question

can someone please help me on this question

Glenn invested $18,000 at 5% interest compounded annually. 
 
How much interest will Glenn earn in 3 years?
 
 A.
$20,837.25
 
 B.
$19,826.24
 
 C.
$2837.25
 
 D.
$2340.23

amilapsn · Answer

$$18000\times(\frac{ 5 }{ 100})^{3}$$

anonymous · Answer

i need help i cant do it

anonymous · Answer

a

anonymous · Answer

thanks cram

triciaal · Answer

simple interest, I = Principal,p * rate as a %, r/100* time ,t in years
I = P RT/100
p = 18000; r = 5% = 5/100; t = 3 years
plug the numbers

compound interest 
I =P (1 + r)^t - P
where r is the rate as a % and t = number of compounding periods
plug the numbers and match the answer

triciaal · Answer

compound interest
answer c
@cram  that would be the accumulated amount after the 3 years

triciaal · Answer

@sga the question asked for the interest