TB Problem Qu. 9-456 Creger Corporation, which makes landing ... Creger Corporation, which makes landing gears, has provided the following data for a recent month: Budgeted production Standard machine-hours per gear Budgeted supplies cost Actual production Actual machine-hours Actual supplies cost it 1,600 gears 5.9 machine-hours $ 6.50 per machine-hour 11, 200 gears 7,990 machine-hours $49, 782 Required: Determine the rate and efficiency variances for the variable overhead item supplies. (Indicate the effect of each variance by selecting "F" for favorable, "U" for unfavorable, and "None" for no effect (i.e., zero variance). Input all amounts as positive values.) Variable overhead rate variance Variable overhead efficiency variance