Question 16 of 20
5.0 Points
If a firm increases its activity level ,
A . costs should remain the same .
B . most costs will rise .
C . no costs will remain the same .
D . some costs will change , others will remain the same .
Question 17 of 20
5.0 Points
Which of the following is not a mixed cost ?
A . Car rental fee
B . Electricity