Try another version of this question Mary Grace invested a principal of `$1,050` ` ` in her bank account with interest rate `3.6%` How much interest did she earn in `9` months` `` ` ? Box 1: Enter your answer as an integer or decimal number. Examples: 3, -4, 5.5172
She earned $ in interest.
If necessary, round to the nearest cent.
Enter DNE for Does Not Exist, oo for Infinity $28.35