Required information The Foundational 15 (Algo) [LO9-1, LO9-2, LO9-4, LO9-5, LO9-6] [The following information applies to the questions displayed below] . Preble Company manufactures one product. Its varlable manufacturing overhead is applied to production besed on direct labor-hours and its standard cost card per unit is as follows: The company atso established the following cost formulas for its selling expenses: The planning budget for March was based on producing and selling 29,000 units. However, during March the company actually produced and soid 34,000 units and incurred the following costs: a. Purchased 160,000 pounds of raw materials at a cost of $8.50 per pound. All of this material was used in production. b. Direct-laborers worked 59,000 hours at a rate of $14.00 per hour, c. Total variable manufacturing overhead for the month was $564,040. d. Total advertising, sales salarles and commissions, and shipping expenses were $245,000,$475,000, and $155,000, respectively. oundational 910 (Algo) What is the variable overhead efficiency variance for March? (indicate the effect of each variance by selecting "F" for favorable, " for unfavorable, and "None" for no effect (L.e., zero variance.). Input the amount as a positive value.) 11. What is the variable overhead rate variance for March? (Indicate the effect of each variance by selecting "F" for favorable, "U" f unfavorable, and "None" for no effect (i.e., zero variance.). Input the amount as a positive value.) 12. What amounts of advertising, sales salaries and commissions, and shipping expenses would be included in the company's flexible budget for March