Current Attempt in Progress Grouper Groomers is in the dog$-$grooming business. Its operating costs are described by the following equations: Grooming supplies $($variable$)$ y$=$$$0+$$$3$x Direct labor $($variable$)$ y$=$$$0+$$$13$x Overhead $($mixed$)$ y$=$$$10,400+$$$1$x Milo, the owner, has determined that direct labor is the cost driver for all three categories of costs. $($a$)$ Your answer is partially correct. Prepare a flexible budget for activity levels of $510,590,$ and $680$ direct labor hours. $($List variable costs before fixed costs.$)$ GROUPER GROOMERS Flexible Budget