The problems of physical distance can be _____________ by technology which can serve to ___________ trade

If Karen gets up early and studies three hours for her test, she is likely to get an A. If she sleeps in, she will probably get a C. What is the opportunity cost of sleeping in?

(A) Three additional hours of study. (B) a C. (C) An A. (D) Three additional hours of sleep.

Refer to Figure 11-5. Identify the curves in the diagram

A) E = average fixed cost curve; F = average total cost curve; G = average variable cost curve, H = marginal cost curve B) E = marginal cost curve; F = total cost curve; G = variable cost curve, H = average fixed cost curve C) E = average fixed cost curve; F = variable cost curve; G = total cost curve, H = marginal cost curve D) E = marginal cost curve; F = average total cost curve; G = average variable cost curve; H = average fixed cost curve.