Refer to Scenario 2.1. What is the equilibrium price of books?

Consider two goods X and Y available for consumption. Assume that the price of X changes while the price of Y remains fixed. For these two goods, the price-consumption curve illustrates the

A) relationship between the price of X and consumption of Y. B) utility-maximizing combinations of X and Y for each price of X. C) relationship between the price of Y and the consumption of X. D) utility-maximizing combinations of X and Y for each quantity of X.

As Reba consumes four slices of pizza, her total utility rises from 0 to 18, to 24, to 28, and to 30, respectively. What is her marginal utility of the first slice of pizza?

a. 18 b. 24 c. 2 d. 7 e. 8