All values in a column must be of the same data type

Sydney, Inc. uses flexible budgets. At normal capacity of 16,000 units, budgeted manufacturing overhead is $128,000 variable and $360,000 fixed. If Sydney had actual overhead costs of $500,000 for 18,000 units produced, what is the difference between actual and budgeted costs?

a) $4,000 favorable b) $12,000 unfavorable c) $4,000 unfavorable d) $16,000 favorable

Mobile apps use tracking technology to identify individual users. Tracking information can make ads

a. more effective b. less effective c. same level of effectiveness d. it depends