Roberts Electronics calculates that if it produces 15 radar detectors, its costs are $1,500, and if it produces 16 radar detectors, its costs are $1,590. In this instance, $90 is the firm's ____ cost.

Roberts Electronics calculates that if it produces 15 radar detectors, its costs are $1,500, and if it produces 16 radar detectors, its costs are $1,590. In this instance, $90 is the firm's ____ cost.

Roberts Electronics calculates that if it produces 15 radar detectors, its costs are $1,500, and if it produces 16 radar detectors, its costs are $1,590. In this instance, $90 is the firm's ____ cost.


average total

fixed

variable

marginal

average variable



Answer: marginal


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