Doggone Groomers is in the dog-grooming business. Its operating costs are described by these formulas: D Grooming supplies (variable) y $0+ $4x Direct labour (variable) $0+ $12x Overhead (mixed) $11,220 + $ 2x Puli, the owner, has determined that direct labour is the cost driver for all three categories of costs. (a) Prepare a flexible budget for activity levels of 550, 600, and 680 direct labour hours. (List variable costs before fixed costs) Question 9 of 9