QUESTION6 Which of the following statements is true with regard to a variable cost? O Variable costs per unit remain constant. O Variable cost per unit varies with activity level. O Total variable costs remain constant. OVariable costs do not change in total by changes in the activity level. QUESTION7 Which of the following examples is a fixed cost? O Factory workers are paid an hourly wage of $12 per hour. Maintenance costs in a factory include a constant fee each month of $80 and a cost of $2.30 per machine hour. Advertising costs are budgeted for $15,000 per year The cost of radios to be put in 1,000 newly built cars is $20,000