Exercise 16-31 (Algo) Sales Activity Variance (LO 16-3) Selected data for October for Rio Vista Company is shown as follows. The variable overhead sales activity variance is $6,000 F. Required: a. How many units were budgeted for October in the master budget? b. Recreate the master budget for October. Complete this question by entering your answers in the tabs below. How many units were budgeted for October in the master budget? (Do not round intermediate calculations.) Complete this question by entering your answers in the tabs below. Recreate the master budget for October. (Do not round intermediate calculations. Indicate the effect of each variance by selecting " F " for favorable, or "U" for unfavorable. If there is no effect, do not select either option.)