E13.22 ( {:LO_(2)) The actual selling expenses incurred in March 2022 by Vincent Company are as follows: Variable Expenses Fixed Expenses Sales commissions $11,000 Sales salaries $35,000 Advertising 7,000 Depreciation 7,000 Travel 5,100 Insurance 1,000 Delivery 3,500 Instructions a. Prepare a flexible budget performance report for March using the budget data in E13.21, assuming that March sales were $170,000. Expected and actual sales are the same. b. Prepare a flexible budget performance report, assuming that March sales were $180,000. Expected and actual sales are the same. c. Comment on the importance of using flexible budgets in evaluating the sales manager's performance. Prepare a flexible budget report and a responsibility report for manufacturing over