What type of economy that is found in the united states?

Which of the following  bestillustrates a negative reinforcer?               a.  copland gives up candy to stave off chronic acid indigestion.    b.  nancy learns that she prefers chocolate over vanilla.    c.  carmine changes his major to english lit after failing a math exam.    d.  on a hot day, lindberg always drinks lemonade.

Which of the following is a stage in the lookingglass self theory? we imagine what it would be like to go to college. ✓ we imagine how others judge us. we develop feelings about our parents. x all of the above

Based on the supply graph and the demand graph shown above, what is the price at the point of equilibrium