Marika deposited $2,100 on May 22. On September 10, she had $2,120.12. What simple interest rate per year did she earn?

Simple Interest Rate

An interest rate calculation method where the interest is computed solely on the principal amount, without compounding.

September

The ninth month of the year in the Gregorian calendar, often associated with the beginning of the academic year in many countries.

Deposited

Placing funds into a bank account or making an investment where the money is held under a specific condition.