What is one role of congress in determining federal budget apex?

Turning a draft budget into spending bill. [apex]

Turning a draft budget into spending bills is one role of congress in determining federal budget.

The federal budget is the government's estimate of revenue and spending for each fiscal year. The revenue for most governments comes from taxes including taxes on family incomes, business profits, and imports, such as custom duties and tariffs. Besides, the government imposes use taxes on activities, including gasoline, to pay for related activities, such a building roads.

you didn't give any answers to choose from so i can't with this but, i do know something that the mexican government would be worried about and that is the wall that donald trump is currently trying to get up.

i think that the answer is polishing peanuts