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 fourth slice of pizza?

Higher nominal interest rates ________ the amount of money demanded and a higher price level ________ the amount of money demanded.

A. increase; decreases B. increase; increases C. decrease; decreases D. decrease; increases

A firm that accepts the price as determined by industry supply and demand is called a _______.

Fill in the blank(s) with the appropriate word(s).