Assume that a company provided the following cost formulas for three of its expenses (where a refers to the number of hours worked) Rent (fixed) Supplies (variable) Utilities (mixed) $ 3,000 $ 4.009 $ 150 + $ 0.759 The company's planned level of activity was 2,090 hours and its actual level of activity was 1.850 hours, How much supplies expense would be included in the planning budget