Roberds Tech is a for-profit vocational school. The school bases its budgets on two measures of activity i.e., cost drivers), namely student and course. The school uses the following data in its budgeting: Fixed element per month Variable element per course Variable element per student $ 198 $ $ 32 Revenue Faculty wages Course supplies Administrative expenses $2,900 $25,500 $ 32 In March, the school budgeted for 1710 students and 68 courses. The school's income statement showing the actual results for the month appears below: 1,610 71 $311,340 Roberds Tech Income Statement For the Month Ended March 31 Actual students Actual courses Revenue Expenses: Faculty wages Course supplies Administrative expenses Total expense Net operating income 284,950 52,590 39,562 267,102 $ 14,238 Required: (a) Calculate the activity variance for revenue for March. Label the variance as favorable or unfavorable (b) Calculate the spending variance for Administrative expenses for March. Label the variance as favorable or unfavorable Amount Favorable/Unfavorable a) Activity variance for revenue in March b) Spending variance for administrative expenses in March