Refer to Figure 13-3. Suppose the economy is at point C. If investment spending decreases in the economy, where will the eventual long-run equilibrium be?

After constructing a new factory, the cost of building the factory is a

A) past cost. B) sunk cost. C) variable cost. D) None of the above answers are correct.

Julie's total utility from cheeseburgers is given in the table above. What is the marginal utility of the third cheeseburger?

A) 86 B) 28.7 C) 20 D) 14