9 of 10 View Policies Current Attempt in Progress Rensing Groomers is in the dog-grooming business. Its operating costs are described by the following formulas: Grooming supplies (variable Direct labor (variable) Overhead (mixed) y 30433 y $0 $14x ym $9.100+$1x Milo, the owner, has determined that direct labor is the cost driver for all three categories of costs. (a) Prepare a flexible budget for activity levels of 530, 580, and 660 direct labor hours. (List variable costs before fixed costs) RENSING GROOMERS Flexible Budget