Please help with these multiple choice questions - Intro to Managerial Accounting - 5e

Which of the following assumptions regarding variable costs is false?

A)

A variable cost increases in total in proportion to activity

B)

A variable cost is constant if expressed on a per-unit basis

C)

A variable cost is constant per unit but varies in total with the activity

D)

None of the above

2.

Which of the following statements is false?

	A)	A mixed cost contains both fixed and variable elements
	B)	As companies increasingly rely on knowledge workers, the labor costs associated with employing these workers is often committed fixed as opposed to discretionary
	C)	Discretionary fixed costs can be cut in the short term if necessary while committed fixed costs cannot be cut for short periods of time
	D)	The planning horizon for discretionary fixed costs is longer than the planning horizon for committed fixed costs

Which of the following would not be considered a discretionary fixed cost?

	A)	Depreciation of buildings and equipment
	B)	Research
	C)	Student internships
	D)	Public relations