Amount = principal x interest rate x years no?

10000 x .05 x 47

what did I do wrong?

If an 18 year old has $10,000 and that person puts that money into a savings plan that pays an annual interest rate of 5%, according to our textbook, at age 65 that $10,000 will have grown to _______.

Actual question

If an 18 year old has $10,000 and that person puts that money into a savings plan that pays an annual interest rate of 5%, according to our textbook, at age 65 that $10,000 will have grown to _______.

$104,345

$202,375

$1.6 million

$55,425