A mother wants to invest $11,000.00 for herson's future education. She invests a portion of the money in a bank certificate of deposit(CD account) which earns4% and the remainder in a savings bond that earns7%. If the total interest earned after one year is $660.00, how much money was invested in the CDaccount?

The total interest earned after one year is $660.00.

How much money was invested in the CDaccount? $______________

Round to the nearestcent, ifnecessary.