In the short run, if average variable cost equals $50, average total cost equals $75, and output equals 100, the total fixed cost must be:

In the United States in 2014, the percentage of people with private health insurance was about

A) 17%. B) 29%. C) 74%. D) 83%.

Which of the following is NOT an example of a supply shock?

A) a drought in the Midwest B) a decline in natural gas prices following discovery of new fields C) the introduction of a new line of computer-controlled machine tools in manufacturing D) a substantial increase in federal government spending on Medicare