By Charging Users That Skip Workouts, the Designers of GymPact

question 121

Multiple Choice

By charging users that skip workouts, the designers of GymPact are

• A)increasing the marginal cost of exercise
• B)increasing the marginal benefit of exercise
• C)increasing the marginal cost and the marginal benefit of exercise by the same amount.
• D)decreasing the marginal cost and the marginal benefit of exercise.

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Definitions:

Reptiles

A class of cold-blooded vertebrates that include snakes, lizards, turtles, crocodilians, and various extinct groups, characterized by breathing air, laying shelled eggs, and having a skin covered with scales or scutes.

Urea

An organic compound and waste product produced in the liver, resulting from the metabolism of proteins, excreted in the urine.

Amphibians

A class of cold-blooded vertebrates that includes frogs, toads, salamanders, and newts, characterized by their ability to live both in water and on land.

Mammals

Warm-blooded vertebrates characterized by the presence of mammary glands, which females use to feed their young, and usually hair or fur on their bodies.