In 1970 the CPI was 39, and in 2000 it was 172. A local phone call cost $0.10 in 1970. What is the price of this phone call in 2000 dollars?

Credit cards are not part of the nation's money supply

Indicate whether the statement is true or false

In the above figure, the long-run average cost curve exhibits constant returns to scale

A) between 5 and 10 units per hour. B) between 10 and 20 units per hour. C) between 20 and 25 units per hour. D) along the entire curve.