Plz help me

What lured the spanish to the area of oklahoma?

What is the relationship of the letters n.y.l> w.c to the new york infirmary for women and children

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