9. What variable manufacturing overhead cost would be included in the company's flexible budget for March? Vablo mancung overhead cost 10. What is the variable overhead efficiency variance for March? (Indicate the effect of each variance by selecting for favorable "U" for unfavorable, and "None" for no effect (le, zero variance.). Input the amount as a positive value.) Marinbio overhand efficiency variance 11. What is the variable overhead rate variance for March? (Indicate the effect of ench variance by selecting "P" for favorable, "U" for unfavorable, and "None" for no effectie., zero variance.), Input the amount as a positive value.) Variable overhead rate variance 12. What amounts of advertising, sales salaries and commissions, and shipping expenses would be included in the company's flexible budget for March? Advertising Sales salaries and commissions Shipping expenses