Sandhill Manutacturing has prepared the following monthly flexible manufacturing overhead budget for its Mixing Department: Prepare a flexible budget at the 7,100 direct labor hours of activity. (List variable costs before fixed costs.) SANDHIL MANUFACTURING Monthly Flexible Manufacturing Overhead Budget Mixing Department Activitylevel Direct labor hours 7,100 8 5 6 9 7,100 Smitur laber Attempts: 0 of 1 used Sutimit