Answer
Salaries & Wages Activity Variance = $\$$5,500F
Travel Expense Activity Variance = $\$$3,000F
Other Expense Activity Variance = $\$$0
Work Step by Step
Activity Variances are the differences between planning budget and flexible budget.
Sal. & Wages = 83,000 - 88,500 = $\$$5,500F
Travel = 18,000 - 21,000 = $\$$3,000F
Other = 36,000 - 36,000 = $0