Which of the Following Is the Correct Equation for Total

Multiple Choice

Which of the following is the correct equation for total mixed costs under the linearity assumption?

A) Total Fixed Costs + (Variable Cost per Unit × Units of Activity)
B) Total Variable Costs + (Fixed Cost per Unit × Units of Activity)
C) (Total Fixed Costs × Units of Activity) + Total Variable Costs
D) (Total Fixed Costs × Units of Activity) + (Total Variable Costs × Units of Activity)