4. Archer's cust accountant prepared the fuwing stalic budget based un expected activity of 4,000 units for the May 2018 accounting period: S60,000 32,000 Sales Revenuc Variable Costs Contribution Margin $28,000 Fixed Costs Net Income 20,000 $8,000 If Archer's sales manager were to prepare a flexible budget for expected activity of 5,000 units, budgeted net income on this flexible budget would be? a. b. If Archer actually produced and sold 5,000 units at $18 each, what is the sales revenue activity/volume variance? c. If Archer actually incurred the following costs during May 2018 Sales Revenuc Variable Costs $80,000 35,000 Contribution Margin $45,000 Fixed Costs Net Income 12,000 $33,000 The flexible budget variance for: i. Fixed costs: ii. Variable costs: Indicate favorable /unfavorable variances for full credit