b) In this one, we're going to see what happens when prices change. Sam's housemates were throwing too many parties, so she moved into an unfurnished apartment. Sam is buying chairs and couches. Chairs cost $75 and couches cost $125, and Sam has $375 to spend. a) Draw the budget constraint on a graph. b) Now the cost of chairs has increased to $125, redo part a. c) Chairs are back down to the original price and couches are down to $50, redo part a