Marcus invested $2000 in a bank account earning simple interest. The interest, I, he has after t years at an interest rate r is given by this equation.



l = 2000 rt



After 2 years, the total amount in the account was $2160. What was the annual interest rate?

Drag and drop an answer choice into each empty box below

The annual interest rate was

4%
8%
16%
40%