Exercise 24-8 (Part Level Submission) 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 $0 +$3x Y $0 + $13x Y $10,400 + $1x Milo, the owner, has determined that direct labor is the cost driver for all three categories of costs. Prepare a flexible budget for activity levels of 510, 590, and 660 direct labor hours. (List variable costs before fixed costs.) RENSING GROOMERS Flexible Budget