How do the executive and legislative branches collaborate on the federal budget?
a. agency heads work with the president to set budget priorities.
b. congress holds hearing to ask budget questions of executive branch officials.
c. house and senate committees send their budgets to the full house or senate.
d. the congressional budget office communicates with congress on the budget.

Ascientist performs an experiment where she measures the mass of a piece of metal, pours acid onto the metal, washes the metal, and then re-measures the mass of the metal. the scientist repeats the experiment several times, each time increasing the amount of acid used. the dependent variable in the experiment is the: initial mass of the metal final mass of the metal amount of acid used washing the metal