Mighty muffler inc operates an automobile service facility that specializes in replacing mufflers in compact cars. The following table shows the cost incurred during a month when 700 mufflers were replaced.

Muffler replacements 600 700. 800

Total cost Fixed cost. a. $56,000 b Variable cost. c. 28,000 d Total cost. e 84000 f

Cost per muffler replacement Fixed cost. g h i Variable cost. j k l Total cost per muffler m n o