If Average Total Cost Equals $15 at 20 Units of Output

question 97

Multiple Choice

If average total cost equals $15 at 20 units of output and average total cost equals $15 at 21 units of output,then the marginal cost of the 21^st unit is ____.

• A) zero
• B) $15
• C) $20
• D) $21

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Definitions:

External Oblique

A muscle in the abdomen that helps rotate the trunk and flex the vertebral column.

Scapula

The flat, triangular bone located in the upper back, commonly known as the shoulder blade.

Rhomboid Major

A skeletal muscle located in the upper back that connects the spine to the shoulder blade, aiding in retraction of the scapula.

Teres Minor

A small muscle of the rotator cuff that assists in the rotation and stabilization of the shoulder joint.