Assume that a company provided the following cost formulas for three of its expenses (where q refers to the number of hours worked): Rent (fixed) Supplies (variable) $ 3,000 $ 4.00g $ 150$ 0.75g The company's planned level of activity was 2,130 hours and its actual level of activity was 1,850 hours. How much supplies expense would be included in the planning budge Utilities (mixed) Multiple Choice O $7,920 $8,220 $8,420 $8,520