Alicia deposited $450 into a savings account earning 3.75% interest. how much interest will she earn in6 years? explain. write the simple interest formula

Dakota earned $7.50 in interest in account a and $18.75 in interest in account b after 15 months. if the simple interest rate is 4% for account a and 5% for account b, which account has the greater principal? explain. to make it a little easier, there is an image. good luck!

Standard deviation of 19,29,21,22,23

Ineed to know the answer to this algebra question.