Crosshili Comparys total overhead costs at various levels of activity are presented below. Assume that the overhead cost above consists of utilites, supervisory salanes, and maintenance. The breakdown of these costs at the 60,000 machine hour level of activty in May is as follows The company warts to break down the maintenance cost into its variable and fored cost elements. Regaired: 1. Estinate how much of the $246,000 of overhead cost in July was maintenance cost. (Hint To do this, first deteinine how much of the $246,000 consisted of unilaies and supervisoty salaries. Think about the behaviour of variable and fixed costs within the relevan range) (Round the "Vorioble cost per unit" to 2 decimel places.) 2. Using the high-low method, estimate a cost formula for maintenance. (Round the "Vorioble cost per unit" to 2 decimal pleces) 4. What lotal oveitead cost wodid you eipect to be incuired at an activey ievel of 75,000 machire-hours? 1 Round the "Varisblo cest per unit" to 2 decimel ploces