What country did the us gain control of after wwll South Korea North Korea Hungary Greece

At the time, North and South Korea were just known as Korea, so it's neither of those two. I'd probably guess Hungary since it's closer to Germany than Greece is, but I'm not 100% sure.

increases in demand are shown by a shift to the right in the demand curve. this could be caused by a number of factors, including a rise in income, a rise in the price of a substitute or a fall in the price of a complement.

which the answer is:

b