The most important crop grown by Taino was?

Based on this graph, it is reasonable to assume that by 1930 the percentage of the population with the right to vote was

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

What was a major failing of the united states under the articles of confederation?