What two things were implemented in southern states to prevent african american from voting

Write the title date and stated purpose of the map you have chosen to describe what you learn from your careful review of the maps information. picture above

What impact did the gi bill and the interstate highway act of 1957 have on the development of the suburbs

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