Suppose you deposited $100 in a savings account 4 years ago with a simple interest rate of 2%. The interest...

9. Suppose you deposited $100 in a savings account 4 years ago with a simple interest rate of 2%. The interest that you earned in those 4 years is $8.80. Which of the following is true? Select all that apply.
The interest rate is 0.022.
The principal was $100.
The interest earned is $4.
The account was opened 8 years and 8 months ago.