PLEASE HELP ME!!!

If $4,000 is invested in an account that pays interest compounded
continuously, how long will it take to grow to $8,000 at 4%? Round to the
nearest tenth.

A. 14.2 years
B. 2.8 years
C. 17.3 years
D. 13.0 years

Respuesta :

its b. i believe
im not sure if it right

Answer:

MY ANWER IS LETTER B.2.8