Equation of compound interest:

Here   A is the current amount.

P is the principal or initial amount. \ \

r is the annual interest rate expressed as a decimal, r > 0. \ \

n is the number of times the interest is compounded each year, and t is time in years.

                (Substitute ) \ \

     (Divide: ) \ \

           (Add: )

              (Multiply: ) \ \

(Use exponent calculator:)

.                         (Multiply: )

There will be about $ in 8 years.

There will be about $ in 8 years.