please help me?

Question

use the following formula
A=P(1+R)^t TO SOLVE THE FOLLOWING PROBLEM. FIND THE RATE "R" AT WHICH $15,000 GROWS TO $18,482 IN 2 YEARS. ANNUAL COMPUND INTEREST RATE ? %

Answer 1

A = P (1+R)^t
A = 18482, P = 15000, t = 2
A/P = (1+R)^t
ln (A/P) = t * ln (1+R)
ln (A/P) / t = ln (1+R)
e^(ln (A/P) / t) = 1+R
R = e^(ln(A/P) / t) - 1 = 0.11 = 11%

Answer 2

18482=15000(1+r)^2
solve for this, r is about 11 percent