1.which event took place soon before the united states annexed texas. a sam houston became president b texas became a u. s. territory c james polk became president d texas wrote a new constitution 2.which of the following images would be the best symbol of the turning point in texas history after annexation? a an airplane, because the population growth took off b a canyon, because the population got much smaller all at once c a flat prairie, because the population stayed about the same. d a roller coaster, because people came to and left the state quickly plz i really need this stat like now! plz !