The aggregate supply curve shows how much output U.S. producers are willing and able to supply at each price level, other things constant

Refer to Figure 21.1. The highest 20% of the population earn ________ of total income

A) 40% B) 44% C) 60% D) 80%

The primary purpose of economics is to understand how people make

A) money. B) goods and services. C) choices. D) a comfortable living.