Per-unit variable costs can be misleading and lead to poor decisions. increase as output increases. decrease as output decreases. O remain constant within the relevant range. 4.5 points Save Answer QUESTION 15 Ruskin Company had utilities cost of $95,000 at an output level of 30,000 units. The utilities cost was a mixed cost and the fixed portion was $50,000. What would the estimate of total utilities cost be at an output level of 40,000 units? $65,000 $95,000 $110,000 $125,000 4.5 points Save Answer QUESTION 16 The cost formula for monthly depreciation cost in a factory is Total cost $10,000 This cost O is strictly variable. O is strictly fixed. O is a mixed cost. is a step cost