Cost Behavior when costs are semivariable: Data from the payroll department of Dominguez Company for the past two months follow:

November...........# of employees paid 6,000.......Payroll department costs $12,000

December...........# of employees paid 9,000.......Payroll department costs $15,000

a. Sketch a line describing these costs as a function of the number of employees paid.

b. What is the apparent variable cost per employee paid?

c. The line should indicate that these costs are semivariable. What is the apparent fixed cost per month of running the payroll department during November and December?