Aiden is trying to save money and has $1800 to set aside in some type of savings account. he checked his bank one day, and found that the rate for a 12-month cd had an annual percentage yield of 4.25%. the interest rate on his savings account was 2.75% annual percentage yield. how much more simple interest wpuld aiden earn if he invested in a cd for 12 months rather than leaving the $1800 in a regular savings account?