Which of the following represents the profit from the investment of x dollars at n percent compound annual interest for 6 years?
Select
A) 5x (1+n/100)^5 - x B) 6x (1+n/100)^4 - x C) x (1+n/100)^6 - x D) 2x (1+n/100)^7 - x E) 4x (1+n/100)^8 - x
Amount after 6 years compounded yearly = x (1+n/100)^6   Thus profit = Final amount - original principle = x (1+n/100)^6 - x . Answer : x (1+n/100)^6 - x
<result>C</result>
Which of the following represents the profit from the investment of x dollars at n percent compound annual interest for 6 years?