Question 9 5 pts At the high level of activity in November, 7,000 machine hours were run and power costs were $10.000. In April, a month of low activity, 2.000 machine hours were run and power costs amounted to $10.000. Using the high-low method, the estimated fed cost element of power costs is $8.000 O None of the responses provided O $6.800 O59,000 O $5.400