Electrical Costs at One of Reifel Corporation's Factories Are Listed

Multiple Choice

Electrical costs at one of Reifel Corporation's factories are listed below: Management believes that electrical cost is a mixed cost that depends on machine-hours.
-Using the high-low method,the estimate of the variable component of electrical cost per machine-hour is closest to:

A) $0.12
B) $20.38
C) $7.98
D) $8.22