According to the u. s. constitution, who has the responsibility to fix the standard of weights and measures?

I’m annoyed but glad that my history teacher left and quit her job as a teacher to become a flight attendant

How did many americans respond to the labor strikes of 1919? a.) many felt the strikes were started by communists. b.) many were sympathetic to the demands of labor unions. c.) many thought the government should not intervene.

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