3200 dollars is placed in an account with an annual interest rate of 5.25%. To the nearest tenth of a year, how long will it take for the account value to reach 13400 dollars?

Respuesta :

80 years

Step-by-step explanation:

3200 ÷ 100 = 32

32 × 5.25 = $168 - per year

13400 ÷ 168 = 80 years