At an activity level of 6,000 units the cost for maintenance is $7,200 and at 10,000 units the cost for maintenance is $11.800. Using the high-low method, what is the cost formula for mainterance? $1.16 per unit $600 ptus $1.10 per unit $1.20 per unit $1,200 plus $1,10 per unit The following materials standards have been established for a porticular product: The following data pertain to operations concerning the mroduct for the last month: What was the compamy's materials price variance? 12.250F 55,410r $2.250U 55,4100