What office analyzes the federal budget to report to the appropriations committeea. congressional budget officeb. office of management and budgetc. ways and means commiteed. appropriations commitee

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

Which of the following was probably the most difficult challenge facing construction of the railroad?

What industry was exempt from the child-labor laws passed in the factory act of 1833?