Three Costs Incurred by Randall Rockers Are Summarized Below at Two

question 32

Multiple Choice

Three costs incurred by Randall Rockers are summarized below at two different activity levels, 600 and 700 units: $\begin{array}{lrr}&600 \text { Units }& 700 \text { Units }\\\text { Cost A } & \$ 2,700 & \$ 3,150 \\\text { Cost B } & 2,940 & 3,360 \\\text { Cost C } & 4,800 & 5,600\end{array}$ Which of these costs is variable?

• A) A, B, and C
• B) A and C
• C) A only
• D) C only

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Definitions:

Obstructive Sleep Apnea

A sleep disorder characterized by pauses in breathing or shallow breaths due to throat muscles intermittently relaxing and blocking the airway.

Daytime Fatigue

Daytime fatigue is the persistent feeling of tiredness and lack of energy during the day, often resulting from poor sleep quality or quantity.

Snoring

Snoring is the sound produced by the vibration of respiratory structures due to obstructed air movement during sleep.

Bruxism

Involuntary grinding or clenching of the teeth, typically occurring during sleep, which can cause tooth wear, jaw pain, and other problems.