To account for these expenses, the family sets aside $1000 per month, which is the
average of the total divided by 12 months. If the money is deposited in a regular savings
account, it can earn 4% annual interest, provided it stays in the account at least one
month. The bank also offers 3-month and 6-month certificates of deposit that can earn
5.5% and 7% annual interest, respectively. Develop a 12-month investment schedule that
will maximize the family's total return for the year. State any assumptions or requirements
needed to reach a feasible solution.