To calculate the amount to be paid back after two years on a $5,000 credit card loan with an interest rate of 20% compounded yearly, we can use the formula for compound interest:
Where:
is the amount of money accumulated after n years, including interest. is the principal amount (the initial amount of money, in this case, $5,000). is the annual interest rate (decimal, so 20% becomes 0.20). is the number of years the money is invested or borrowed (in this case, 2 years).
Substituting the values, we get:
Therefore, the amount to be paid back after two years is $7,200.