How many cowboys worked the cattle trails between 1866 and 1885?

Which of these terms describes the agreement between abraham and god that forms th foundation of the jewish religion?

Which of the following is a claim about ancient rome that a historian could build san argument around

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