Marshall is planning to open a savings account at his local branch and was offered a 2.5% annual interest rate. Most people in his town have an account there because they can walk to the bank and the tellers are friendly. Marshall’s brother has advised him to open a savings account in a different branch that offers a 3% interest rate. Marshall would have to drive there to do his banking.

How much will Marshall earn in interest on a $1000 deposit? Do you think going out of town is worth the effort?

Would your opinion change is Marshall’s deposit was $1 million?

Mrs. julien’s and mrs. castillejo’s classes are selling cookie dough for a school fundraiser. customers can buy packages of macadamia nut chip cookie dough and packages of triple chocolate cookie dough. mrs. julien’s class sold 25 packages of macadamia nut chip cookie dough and 30 packages of triple chocolate cookie dough for a total of $221.25. mrs. castillejo’s class sold 5 packages of macadamia nut chip cookie dough and 45 packages of triple chocolate cookie dough for a total of $191.25. (a) write the system of equations that model the problem. be sure to explain which equation represents which situation. (b) find the cost of each type of cookie. show your work. (c) explain which method you used to solve the system and why you chose that method.