100
(a) What is the difference between uncontrollable and controllable spending?
(b) About what percentage of the annual budget is controllable?
(a) Uncontrollable spending is spending that Congress and the President have no power to change directly, controllable spending is the amount of money that Congress and the President determine that will be spent each year on many individual government expenditures (environment protection programs, aid to education, etc)
(b) 20%