DnA takes on art: in politics, money and public space. Interiors photographer William Abranowicz has a show of images marking the fight for voting rights at the Matt Blacke gallery, one of several LA museums and galleries that are encouraging voter participation. How did art become an “asset class”? Nathaniel Kahn explores the high-end art market in “The Price of Everything.” And two women try and awaken interest in LA public sculpture, by posing on it, in slinky outfits and with a great sense of humor.