A locally owned bank has $28 million in capital to fund home mortgage and automobile loans in the community. Home loans are typically written at 4% annual rate and automobile loans are funded, on average, at 6% annual rate. Management wants to have at least three times as much money invested in the longer term home mortgages as in the comparatively shorter term automobile loans. Using x to represent the total amount lent in home mortgages and y to represent the total amount lent in automobile loans, state the constraint on the maximum total amount of money the bank can loan